Home / 189,949.67-284,819.13-77,708.71

Finding the Fourth Proportional to 189,949.67, 284,819.13 and 77,708.71

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Solution

The fourth proportional to 189,949.67, 284,819.13 and 77,708.71 is: 116,519.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,949.67 : 284,819.13 = 77,708.71 : x
  2. Step 2: Convert to fraction form
    189,949.67/284,819.13 = 77,708.71/x
  3. Step 3: Cross multiply
    189,949.67x = 284,819.13 × 77,708.71
  4. Step 4: Simplify right side
    189,949.67x = 22,132,926,463.57
  5. Step 5: Solve for x
    x = 22,132,926,463.57/189,949.67
  6. Step 6: Final answer
    x = 116,519.96

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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.