Geez, what do you expect from that? Do you want to use that amount to play gambling? Because as far as I know, you can use XRP to gamble and increase the amount. But that is not advisable since you can lose any time before winning some XRP. Maybe you can try to trade XRP pair USDT or BTC or others. But there is still a risk that you should accept and do not sad if you can not turn your 100 XRP to 1,000 XRP in a short time. Playing gambling can make you rich but it can also make you lose everything.