Home / 132,306.42-182,589.20-81,321.30

Finding the Fourth Proportional to 132,306.42, 182,589.20 and 81,321.30

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Solution

The fourth proportional to 132,306.42, 182,589.20 and 81,321.30 is: 112,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,306.42 : 182,589.20 = 81,321.30 : x
  2. Step 2: Convert to fraction form
    132,306.42/182,589.20 = 81,321.30/x
  3. Step 3: Cross multiply
    132,306.42x = 182,589.20 × 81,321.30
  4. Step 4: Simplify right side
    132,306.42x = 14,848,391,693.02
  5. Step 5: Solve for x
    x = 14,848,391,693.02/132,306.42
  6. Step 6: Final answer
    x = 112,227.30

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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.