Home / 131,869.38-182,084.04-121,793.79

Finding the Fourth Proportional to 131,869.38, 182,084.04 and 121,793.79

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Solution

The fourth proportional to 131,869.38, 182,084.04 and 121,793.79 is: 168,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,869.38 : 182,084.04 = 121,793.79 : x
  2. Step 2: Convert to fraction form
    131,869.38/182,084.04 = 121,793.79/x
  3. Step 3: Cross multiply
    131,869.38x = 182,084.04 × 121,793.79
  4. Step 4: Simplify right side
    131,869.38x = 22,176,705,330.11
  5. Step 5: Solve for x
    x = 22,176,705,330.11/131,869.38
  6. Step 6: Final answer
    x = 168,171.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.