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Finding the Fourth Proportional to 101,889.60, 152,834.40 and 71,874.24

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Solution

The fourth proportional to 101,889.60, 152,834.40 and 71,874.24 is: 107,811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,889.60 : 152,834.40 = 71,874.24 : x
  2. Step 2: Convert to fraction form
    101,889.60/152,834.40 = 71,874.24/x
  3. Step 3: Cross multiply
    101,889.60x = 152,834.40 × 71,874.24
  4. Step 4: Simplify right side
    101,889.60x = 10,984,856,345.86
  5. Step 5: Solve for x
    x = 10,984,856,345.86/101,889.60
  6. Step 6: Final answer
    x = 107,811.36

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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.