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Finding the Fourth Proportional to 135,472.20, 186,933.12 and 75,027.92

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Solution

The fourth proportional to 135,472.20, 186,933.12 and 75,027.92 is: 103,528.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,472.20 : 186,933.12 = 75,027.92 : x
  2. Step 2: Convert to fraction form
    135,472.20/186,933.12 = 75,027.92/x
  3. Step 3: Cross multiply
    135,472.20x = 186,933.12 × 75,027.92
  4. Step 4: Simplify right side
    135,472.20x = 14,025,203,172.71
  5. Step 5: Solve for x
    x = 14,025,203,172.71/135,472.20
  6. Step 6: Final answer
    x = 103,528.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.