Home / 198,589.20-274,116.84-127,161.60

Finding the Fourth Proportional to 198,589.20, 274,116.84 and 127,161.60

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Solution

The fourth proportional to 198,589.20, 274,116.84 and 127,161.60 is: 175,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,589.20 : 274,116.84 = 127,161.60 : x
  2. Step 2: Convert to fraction form
    198,589.20/274,116.84 = 127,161.60/x
  3. Step 3: Cross multiply
    198,589.20x = 274,116.84 × 127,161.60
  4. Step 4: Simplify right side
    198,589.20x = 34,857,135,961.34
  5. Step 5: Solve for x
    x = 34,857,135,961.34/198,589.20
  6. Step 6: Final answer
    x = 175,523.82

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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.