Equivalent conductance of ${\mathrm{Ba}}^{+2}\mathrm{and}{\mathrm{Cl}}^{-}$  ions at infinite dilution are $127 \mathrm{mho} {\mathrm{cm}}^2 {\mathrm{geq}}^{-1}$  and $76 \mathrm{mho} {\mathrm{cm}}^2 {\mathrm{geq}}^{–1}$ respectively. Equivalent conductance of ${\mathrm{BaCl}}_2$at infinite dilution is ________ $\mathrm{mho} {\mathrm{cm}}^2 {\mathrm{geq}}^{–1}$.