There is no such thing as a stupid question. There are only stupid answers.
There are adapters. But I don't know if there is an adapter for 5x114.3 to 5x100. Important thing with the adapter is that you have to "play" with the offset of the rims. The combination of the rim and adapter has to match the original offset.
But honestly, I wouldn't use these adapters. If it doesn't fit right away, it's not made for your car. So find rims that fit!