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Finding the Fourth Proportional to 138,082.60, 207,123.90 and 44,597.80

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Solution

The fourth proportional to 138,082.60, 207,123.90 and 44,597.80 is: 66,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,082.60 : 207,123.90 = 44,597.80 : x
  2. Step 2: Convert to fraction form
    138,082.60/207,123.90 = 44,597.80/x
  3. Step 3: Cross multiply
    138,082.60x = 207,123.90 × 44,597.80
  4. Step 4: Simplify right side
    138,082.60x = 9,237,270,267.42
  5. Step 5: Solve for x
    x = 9,237,270,267.42/138,082.60
  6. Step 6: Final answer
    x = 66,896.70

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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.