The fallout from Ryan Lochte’s story about being robbed at gunpoint in Rio — a tale the Brazilian police said was not true — continued Monday when four companies said they would end business partnerships with Mr. Lochte, an American swimmer and 12-time Olympic medalist.

After a week of intense international media attention and anger in Brazil, the financial repercussions were swift for Mr. Lochte as Speedo USA, the luxury clothing retailer Ralph Lauren and the mattress company Airweave all announced that they would part ways with him. And Syneron Candela, a company that sells hair-removal devices, told Reuters its relationship with the swimmer ended on Sunday.

Speedo USA said in a message on Twitter that it would instead donate a $50,000 portion of Mr. Lochte’s fee to a charity to help Brazilian children.

“While we have enjoyed a winning relationship with Ryan for over a decade and he has been an important member of the Speedo team, we cannot condone behavior that is counter to the values this brand has long stood for,” the company said in its statement.