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Finding the Fourth Proportional to 101,626.38, 152,439.57 and 42,429.83

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Solution

The fourth proportional to 101,626.38, 152,439.57 and 42,429.83 is: 63,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,626.38 : 152,439.57 = 42,429.83 : x
  2. Step 2: Convert to fraction form
    101,626.38/152,439.57 = 42,429.83/x
  3. Step 3: Cross multiply
    101,626.38x = 152,439.57 × 42,429.83
  4. Step 4: Simplify right side
    101,626.38x = 6,467,984,278.18
  5. Step 5: Solve for x
    x = 6,467,984,278.18/101,626.38
  6. Step 6: Final answer
    x = 63,644.74

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1.5x scale

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.