If the concentration of OH$-$ ions in the reaction Fe(OH)3(s) $\rightleftharpoons$ Fe3+(aq) + 3OH$-$(aq) is decreased by 1/4 times, then equilibrium concentration of Fe3+ will increase by

Question

If the concentration of OH^$-$ ions in the reaction
Fe(OH)_3(s) $\rightleftharpoons$ Fe³⁺_(aq) + 3OH^$-$_(aq)
is decreased by 1/4 times, then equilibrium concentration of Fe³⁺ will increase by

64 times