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Finding the Fourth Proportional to 148,694.76, 205,198.95 and 80,711.73

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Solution

The fourth proportional to 148,694.76, 205,198.95 and 80,711.73 is: 111,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,694.76 : 205,198.95 = 80,711.73 : x
  2. Step 2: Convert to fraction form
    148,694.76/205,198.95 = 80,711.73/x
  3. Step 3: Cross multiply
    148,694.76x = 205,198.95 × 80,711.73
  4. Step 4: Simplify right side
    148,694.76x = 16,561,962,248.68
  5. Step 5: Solve for x
    x = 16,561,962,248.68/148,694.76
  6. Step 6: Final answer
    x = 111,382.29

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1.5x scale

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.