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Finding the Fourth Proportional to 168,082.10, 252,123.15 and 89,155.70

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Solution

The fourth proportional to 168,082.10, 252,123.15 and 89,155.70 is: 133,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,082.10 : 252,123.15 = 89,155.70 : x
  2. Step 2: Convert to fraction form
    168,082.10/252,123.15 = 89,155.70/x
  3. Step 3: Cross multiply
    168,082.10x = 252,123.15 × 89,155.70
  4. Step 4: Simplify right side
    168,082.10x = 22,478,215,924.46
  5. Step 5: Solve for x
    x = 22,478,215,924.46/168,082.10
  6. Step 6: Final answer
    x = 133,733.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.