Home / 99,956.28-149,934.44-40,819.80

Finding the Fourth Proportional to 99,956.28, 149,934.44 and 40,819.80

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Solution

The fourth proportional to 99,956.28, 149,934.44 and 40,819.80 is: 61,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,956.28 : 149,934.44 = 40,819.80 : x
  2. Step 2: Convert to fraction form
    99,956.28/149,934.44 = 40,819.80/x
  3. Step 3: Cross multiply
    99,956.28x = 149,934.44 × 40,819.80
  4. Step 4: Simplify right side
    99,956.28x = 6,120,293,853.91
  5. Step 5: Solve for x
    x = 6,120,293,853.91/99,956.28
  6. Step 6: Final answer
    x = 61,229.71

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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.