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Finding the Fourth Proportional to 149,100.14, 223,721.90 and 74,226.78

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Solution

The fourth proportional to 149,100.14, 223,721.90 and 74,226.78 is: 111,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,100.14 : 223,721.90 = 74,226.78 : x
  2. Step 2: Convert to fraction form
    149,100.14/223,721.90 = 74,226.78/x
  3. Step 3: Cross multiply
    149,100.14x = 223,721.90 × 74,226.78
  4. Step 4: Simplify right side
    149,100.14x = 16,606,156,159.70
  5. Step 5: Solve for x
    x = 16,606,156,159.70/149,100.14
  6. Step 6: Final answer
    x = 111,375.86

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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.