So are there walkie-talkies that reach 100 miles? The answer is no, they can't reach that far
The average range of walkie talkies are between 5 and 36 miles at the high end...
Technically speaking, yes, ham radios are capable of communicating with walkie-talkies.
The downside, this is however illegal in the U.S. This is due to the differences in licenses and power levels between walkie-talkies...