Home / 81,324-129,852

Finding the Third Proportional to 81,324 and 129,852

Calculator

Solution

The third proportional to 81,324 and 129,852 is: 207,337.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,324 : 129,852 = 129,852 : x
  2. Step 2: Convert to fraction form
    81,324/129,852 = 129,852/x
  3. Step 3: Cross multiply
    81,324x = 129,852 × 129,852
  4. Step 4: Simplify right side
    81,324x = 16,861,541,904
  5. Step 5: Solve for x
    x = 16,861,541,904/81,324
  6. Step 6: Final answer
    x = 207,337.83

Related Problems

Find third proportional to 40,662 and 64,926
Half scale
Find third proportional to 162,648 and 259,704
Double scale
Find third proportional to 81,326 and 129,855
Similar ratio
Find third proportional to 121,986 and 194,778
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.