Home / 66,074-137,618

Finding the Third Proportional to 66,074 and 137,618

Calculator

Solution

The third proportional to 66,074 and 137,618 is: 286,628.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,074 : 137,618 = 137,618 : x
  2. Step 2: Convert to fraction form
    66,074/137,618 = 137,618/x
  3. Step 3: Cross multiply
    66,074x = 137,618 × 137,618
  4. Step 4: Simplify right side
    66,074x = 18,938,713,924
  5. Step 5: Solve for x
    x = 18,938,713,924/66,074
  6. Step 6: Final answer
    x = 286,628.84

Related Problems

Find third proportional to 33,037 and 68,809
Half scale
Find third proportional to 132,148 and 275,236
Double scale
Find third proportional to 66,076 and 137,622
Similar ratio
Find third proportional to 99,111 and 206,427
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.