Home / 198,262.85-297,689.51-80,164.85

Finding the Fourth Proportional to 198,262.85, 297,689.51 and 80,164.85

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Solution

The fourth proportional to 198,262.85, 297,689.51 and 80,164.85 is: 120,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,262.85 : 297,689.51 = 80,164.85 : x
  2. Step 2: Convert to fraction form
    198,262.85/297,689.51 = 80,164.85/x
  3. Step 3: Cross multiply
    198,262.85x = 297,689.51 × 80,164.85
  4. Step 4: Simplify right side
    198,262.85x = 23,864,234,915.72
  5. Step 5: Solve for x
    x = 23,864,234,915.72/198,262.85
  6. Step 6: Final answer
    x = 120,366.65

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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.