Home / 150,149.32-207,173.19-89,710.90

Finding the Fourth Proportional to 150,149.32, 207,173.19 and 89,710.90

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Solution

The fourth proportional to 150,149.32, 207,173.19 and 89,710.90 is: 123,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,149.32 : 207,173.19 = 89,710.90 : x
  2. Step 2: Convert to fraction form
    150,149.32/207,173.19 = 89,710.90/x
  3. Step 3: Cross multiply
    150,149.32x = 207,173.19 × 89,710.90
  4. Step 4: Simplify right side
    150,149.32x = 18,585,693,330.77
  5. Step 5: Solve for x
    x = 18,585,693,330.77/150,149.32
  6. Step 6: Final answer
    x = 123,781.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.