Home / 148,086.99-204,359.25-80,103.78

Finding the Fourth Proportional to 148,086.99, 204,359.25 and 80,103.78

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Solution

The fourth proportional to 148,086.99, 204,359.25 and 80,103.78 is: 110,542.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,086.99 : 204,359.25 = 80,103.78 : x
  2. Step 2: Convert to fraction form
    148,086.99/204,359.25 = 80,103.78/x
  3. Step 3: Cross multiply
    148,086.99x = 204,359.25 × 80,103.78
  4. Step 4: Simplify right side
    148,086.99x = 16,369,948,402.97
  5. Step 5: Solve for x
    x = 16,369,948,402.97/148,086.99
  6. Step 6: Final answer
    x = 110,542.79

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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.