Let w be the width of the table. From this representation, the length of the table is now w + 4. The area of the rectangle is solved through the equation,
A = L x W
where L and W are length and width, respectively. Substituting the known values,
96 m² = (w + 4)(w)
w is 8. Therefore, the width of the table is 8 m and its length is 12 m.