Home / 148,660.24-205,151.68-80,677.20

Finding the Fourth Proportional to 148,660.24, 205,151.68 and 80,677.20

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Solution

The fourth proportional to 148,660.24, 205,151.68 and 80,677.20 is: 111,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,660.24 : 205,151.68 = 80,677.20 : x
  2. Step 2: Convert to fraction form
    148,660.24/205,151.68 = 80,677.20/x
  3. Step 3: Cross multiply
    148,660.24x = 205,151.68 × 80,677.20
  4. Step 4: Simplify right side
    148,660.24x = 16,551,063,117.70
  5. Step 5: Solve for x
    x = 16,551,063,117.70/148,660.24
  6. Step 6: Final answer
    x = 111,334.83

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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.