Can all elementary particle forces be unified at 100-1000 TeV?

A modest proposal to deal with the gauge hierarchy problem is suggested by removing the necessary conditions for a huge ratio of vacuum expectation values. Instead of the grand unification at ${10}^{15}$ GeV, we unify the electroweak and strong interactions at a low energy 100-1000 TeV. The observed values of ${{sin}^2\theta }_W$ and ${\alpha }_s$ are used as inputs in the determination of the group in the $\mathrm{SU}\mathrm{}\left(N\right)\mathrm{}$ series. The currently favored values of ${{sin}^2\theta }_W$ and ${\alpha }_s$ put a limit on N ≥ 9. In this kind of grand unification, proton stability is a necessity for consistency.