Question 668038
One third equals one fourth of this unknown number. Set it up:

{{{1/3 = (1/4)x}}}
{{{1/3 = x/4}}}
{{{(1/3)12 = (x/4)12}}} (Multiply all terms by the LCD to get rid of the fractions)
{{{4=3x}}}
{{{4/3=x}}}
Or, if you prefer {{{x=4/3}}}

To test: If one third is one fourth of x, then one third times four (four fourths is one whole) will equal x.
{{{1/3*4}}}
{{{4/3}}}

{{{4/3 = 4/3}}} Therefore, x = 4/3 is correct.