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Finding the Fourth Proportional to 135,149.76, 186,545.59 and 89,242.92

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Solution

The fourth proportional to 135,149.76, 186,545.59 and 89,242.92 is: 123,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,149.76 : 186,545.59 = 89,242.92 : x
  2. Step 2: Convert to fraction form
    135,149.76/186,545.59 = 89,242.92/x
  3. Step 3: Cross multiply
    135,149.76x = 186,545.59 × 89,242.92
  4. Step 4: Simplify right side
    135,149.76x = 16,647,872,941.62
  5. Step 5: Solve for x
    x = 16,647,872,941.62/135,149.76
  6. Step 6: Final answer
    x = 123,180.93

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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.