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Finding the Fourth Proportional to 72,134.43, 108,187.07 and 60,412.11

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Solution

The fourth proportional to 72,134.43, 108,187.07 and 60,412.11 is: 90,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,134.43 : 108,187.07 = 60,412.11 : x
  2. Step 2: Convert to fraction form
    72,134.43/108,187.07 = 60,412.11/x
  3. Step 3: Cross multiply
    72,134.43x = 108,187.07 × 60,412.11
  4. Step 4: Simplify right side
    72,134.43x = 6,535,808,871.36
  5. Step 5: Solve for x
    x = 6,535,808,871.36/72,134.43
  6. Step 6: Final answer
    x = 90,605.95

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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.