Home / 132,182.12-198,266.18-81,590.73

Finding the Fourth Proportional to 132,182.12, 198,266.18 and 81,590.73

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Solution

The fourth proportional to 132,182.12, 198,266.18 and 81,590.73 is: 122,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,182.12 : 198,266.18 = 81,590.73 : x
  2. Step 2: Convert to fraction form
    132,182.12/198,266.18 = 81,590.73/x
  3. Step 3: Cross multiply
    132,182.12x = 198,266.18 × 81,590.73
  4. Step 4: Simplify right side
    132,182.12x = 16,176,681,952.56
  5. Step 5: Solve for x
    x = 16,176,681,952.56/132,182.12
  6. Step 6: Final answer
    x = 122,381.78

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1.5x scale

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.