Home / 85,402.50-135,707

Finding the Third Proportional to 85,402.50 and 135,707

Calculator

Solution

The third proportional to 85,402.50 and 135,707 is: 215,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,402.50 : 135,707 = 135,707 : x
  2. Step 2: Convert to fraction form
    85,402.50/135,707 = 135,707/x
  3. Step 3: Cross multiply
    85,402.50x = 135,707 × 135,707
  4. Step 4: Simplify right side
    85,402.50x = 18,416,389,849
  5. Step 5: Solve for x
    x = 18,416,389,849/85,402.50
  6. Step 6: Final answer
    x = 215,642.28

Related Problems

Find third proportional to 42,701.25 and 67,853.50
Half scale
Find third proportional to 170,805 and 271,414
Double scale
Find third proportional to 85,405 and 135,710
Similar ratio
Find third proportional to 128,103.75 and 203,560.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.