Home / 132,416.39-182,720.94-78,691.07

Finding the Fourth Proportional to 132,416.39, 182,720.94 and 78,691.07

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Solution

The fourth proportional to 132,416.39, 182,720.94 and 78,691.07 is: 108,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,416.39 : 182,720.94 = 78,691.07 : x
  2. Step 2: Convert to fraction form
    132,416.39/182,720.94 = 78,691.07/x
  3. Step 3: Cross multiply
    132,416.39x = 182,720.94 × 78,691.07
  4. Step 4: Simplify right side
    132,416.39x = 14,378,506,280.01
  5. Step 5: Solve for x
    x = 14,378,506,280.01/132,416.39
  6. Step 6: Final answer
    x = 108,585.55

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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.