Home / 166,431.78-229,691.90-98,470.62

Finding the Fourth Proportional to 166,431.78, 229,691.90 and 98,470.62

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Solution

The fourth proportional to 166,431.78, 229,691.90 and 98,470.62 is: 135,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,431.78 : 229,691.90 = 98,470.62 : x
  2. Step 2: Convert to fraction form
    166,431.78/229,691.90 = 98,470.62/x
  3. Step 3: Cross multiply
    166,431.78x = 229,691.90 × 98,470.62
  4. Step 4: Simplify right side
    166,431.78x = 22,617,904,048.15
  5. Step 5: Solve for x
    x = 22,617,904,048.15/166,431.78
  6. Step 6: Final answer
    x = 135,898.95

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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.