Home / 166,164.38-229,306.85-90,712.88

Finding the Fourth Proportional to 166,164.38, 229,306.85 and 90,712.88

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Solution

The fourth proportional to 166,164.38, 229,306.85 and 90,712.88 is: 125,183.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,164.38 : 229,306.85 = 90,712.88 : x
  2. Step 2: Convert to fraction form
    166,164.38/229,306.85 = 90,712.88/x
  3. Step 3: Cross multiply
    166,164.38x = 229,306.85 × 90,712.88
  4. Step 4: Simplify right side
    166,164.38x = 20,801,083,167.13
  5. Step 5: Solve for x
    x = 20,801,083,167.13/166,164.38
  6. Step 6: Final answer
    x = 125,183.77

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1.5x scale

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.