Home / 148,549.80-205,011.68-81,494.76

Finding the Fourth Proportional to 148,549.80, 205,011.68 and 81,494.76

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Solution

The fourth proportional to 148,549.80, 205,011.68 and 81,494.76 is: 112,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,549.80 : 205,011.68 = 81,494.76 : x
  2. Step 2: Convert to fraction form
    148,549.80/205,011.68 = 81,494.76/x
  3. Step 3: Cross multiply
    148,549.80x = 205,011.68 × 81,494.76
  4. Step 4: Simplify right side
    148,549.80x = 16,707,377,658.80
  5. Step 5: Solve for x
    x = 16,707,377,658.80/148,549.80
  6. Step 6: Final answer
    x = 112,469.88

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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.