Home / 198,488.46-297,732.24-86,154.12

Finding the Fourth Proportional to 198,488.46, 297,732.24 and 86,154.12

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Solution

The fourth proportional to 198,488.46, 297,732.24 and 86,154.12 is: 129,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,488.46 : 297,732.24 = 86,154.12 : x
  2. Step 2: Convert to fraction form
    198,488.46/297,732.24 = 86,154.12/x
  3. Step 3: Cross multiply
    198,488.46x = 297,732.24 × 86,154.12
  4. Step 4: Simplify right side
    198,488.46x = 25,650,859,132.83
  5. Step 5: Solve for x
    x = 25,650,859,132.83/198,488.46
  6. Step 6: Final answer
    x = 129,230.98

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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.