Home / 189,932.12-284,792.99-77,691.15

Finding the Fourth Proportional to 189,932.12, 284,792.99 and 77,691.15

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Solution

The fourth proportional to 189,932.12, 284,792.99 and 77,691.15 is: 116,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,932.12 : 284,792.99 = 77,691.15 : x
  2. Step 2: Convert to fraction form
    189,932.12/284,792.99 = 77,691.15/x
  3. Step 3: Cross multiply
    189,932.12x = 284,792.99 × 77,691.15
  4. Step 4: Simplify right side
    189,932.12x = 22,125,894,516.58
  5. Step 5: Solve for x
    x = 22,125,894,516.58/189,932.12
  6. Step 6: Final answer
    x = 116,493.70

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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.