Home / 99,279.20-148,904.40-29,151.20

Finding the Fourth Proportional to 99,279.20, 148,904.40 and 29,151.20

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Solution

The fourth proportional to 99,279.20, 148,904.40 and 29,151.20 is: 43,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,279.20 : 148,904.40 = 29,151.20 : x
  2. Step 2: Convert to fraction form
    99,279.20/148,904.40 = 29,151.20/x
  3. Step 3: Cross multiply
    99,279.20x = 148,904.40 × 29,151.20
  4. Step 4: Simplify right side
    99,279.20x = 4,340,741,945.28
  5. Step 5: Solve for x
    x = 4,340,741,945.28/99,279.20
  6. Step 6: Final answer
    x = 43,722.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.