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Finding the Fourth Proportional to 76,265.92, 114,983.98 and 71,120.88

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Solution

The fourth proportional to 76,265.92, 114,983.98 and 71,120.88 is: 107,226.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.92 : 114,983.98 = 71,120.88 : x
  2. Step 2: Convert to fraction form
    76,265.92/114,983.98 = 71,120.88/x
  3. Step 3: Cross multiply
    76,265.92x = 114,983.98 × 71,120.88
  4. Step 4: Simplify right side
    76,265.92x = 8,177,761,843.50
  5. Step 5: Solve for x
    x = 8,177,761,843.50/76,265.92
  6. Step 6: Final answer
    x = 107,226.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.