Home / 119,680.20-179,380.17-76,931.10

Finding the Fourth Proportional to 119,680.20, 179,380.17 and 76,931.10

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Solution

The fourth proportional to 119,680.20, 179,380.17 and 76,931.10 is: 115,306.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,680.20 : 179,380.17 = 76,931.10 : x
  2. Step 2: Convert to fraction form
    119,680.20/179,380.17 = 76,931.10/x
  3. Step 3: Cross multiply
    119,680.20x = 179,380.17 × 76,931.10
  4. Step 4: Simplify right side
    119,680.20x = 13,799,913,796.29
  5. Step 5: Solve for x
    x = 13,799,913,796.29/119,680.20
  6. Step 6: Final answer
    x = 115,306.57

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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.