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Finding the Fourth Proportional to 150,125.85, 207,144.90 and 85,593.87

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Solution

The fourth proportional to 150,125.85, 207,144.90 and 85,593.87 is: 118,103.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,125.85 : 207,144.90 = 85,593.87 : x
  2. Step 2: Convert to fraction form
    150,125.85/207,144.90 = 85,593.87/x
  3. Step 3: Cross multiply
    150,125.85x = 207,144.90 × 85,593.87
  4. Step 4: Simplify right side
    150,125.85x = 17,730,333,641.76
  5. Step 5: Solve for x
    x = 17,730,333,641.76/150,125.85
  6. Step 6: Final answer
    x = 118,103.14

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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.