Home / 198,531.89-297,853.42-80,286.27

Finding the Fourth Proportional to 198,531.89, 297,853.42 and 80,286.27

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Solution

The fourth proportional to 198,531.89, 297,853.42 and 80,286.27 is: 120,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,531.89 : 297,853.42 = 80,286.27 : x
  2. Step 2: Convert to fraction form
    198,531.89/297,853.42 = 80,286.27/x
  3. Step 3: Cross multiply
    198,531.89x = 297,853.42 × 80,286.27
  4. Step 4: Simplify right side
    198,531.89x = 23,913,538,809.99
  5. Step 5: Solve for x
    x = 23,913,538,809.99/198,531.89
  6. Step 6: Final answer
    x = 120,451.88

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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.