Home / 80,652-129,486

Finding the Third Proportional to 80,652 and 129,486

Calculator

Solution

The third proportional to 80,652 and 129,486 is: 207,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,652 : 129,486 = 129,486 : x
  2. Step 2: Convert to fraction form
    80,652/129,486 = 129,486/x
  3. Step 3: Cross multiply
    80,652x = 129,486 × 129,486
  4. Step 4: Simplify right side
    80,652x = 16,766,624,196
  5. Step 5: Solve for x
    x = 16,766,624,196/80,652
  6. Step 6: Final answer
    x = 207,888.51

Related Problems

Find third proportional to 40,326 and 64,743
Half scale
Find third proportional to 161,304 and 258,972
Double scale
Find third proportional to 80,654 and 129,489
Similar ratio
Find third proportional to 120,978 and 194,229
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.