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Finding the Fourth Proportional to 132,879.65, 199,339.55 and 42,892.29

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Solution

The fourth proportional to 132,879.65, 199,339.55 and 42,892.29 is: 64,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,879.65 : 199,339.55 = 42,892.29 : x
  2. Step 2: Convert to fraction form
    132,879.65/199,339.55 = 42,892.29/x
  3. Step 3: Cross multiply
    132,879.65x = 199,339.55 × 42,892.29
  4. Step 4: Simplify right side
    132,879.65x = 8,550,129,572.61
  5. Step 5: Solve for x
    x = 8,550,129,572.61/132,879.65
  6. Step 6: Final answer
    x = 64,344.92

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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.