Home / 78,691.50-103,497.75

Finding the Third Proportional to 78,691.50 and 103,497.75

Calculator

Solution

The third proportional to 78,691.50 and 103,497.75 is: 136,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,691.50 : 103,497.75 = 103,497.75 : x
  2. Step 2: Convert to fraction form
    78,691.50/103,497.75 = 103,497.75/x
  3. Step 3: Cross multiply
    78,691.50x = 103,497.75 × 103,497.75
  4. Step 4: Simplify right side
    78,691.50x = 10,711,784,255.06
  5. Step 5: Solve for x
    x = 10,711,784,255.06/78,691.50
  6. Step 6: Final answer
    x = 136,123.78

Related Problems

Find third proportional to 39,345.75 and 51,748.88
Half scale
Find third proportional to 157,383 and 206,995.50
Double scale
Find third proportional to 78,694 and 103,500
Similar ratio
Find third proportional to 118,037.25 and 155,246.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.