14. (6 points) Two cars, A and B, start from points $A$ and $B$ respectively and travel towards each other, meeting at a point 108 kilometers from $B$. After reaching each other's starting point, they immediately return to their original locations, and meet again at a point 84 kilometers from $A$. The distance between the two meeting points is $\qquad$ kilometers.
【Solution】Solution: $108 \times 3-84-108-84$,
$$
\begin{array}{l}
=324-84-108-84, \\
=240-108-84, \\
=132-84, \\
=48 \text { (km), }
\end{array}
$$

Answer: The distance between the two meeting points is 48 km, so the answer is: 48.