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Finding the Fourth Proportional to 83,833.13, 125,750 and 79,628.62

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Solution

The fourth proportional to 83,833.13, 125,750 and 79,628.62 is: 119,443.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,833.13 : 125,750 = 79,628.62 : x
  2. Step 2: Convert to fraction form
    83,833.13/125,750 = 79,628.62/x
  3. Step 3: Cross multiply
    83,833.13x = 125,750 × 79,628.62
  4. Step 4: Simplify right side
    83,833.13x = 10,013,298,965
  5. Step 5: Solve for x
    x = 10,013,298,965/83,833.13
  6. Step 6: Final answer
    x = 119,443.22

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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.