Home / 198,589.28-297,716.60-86,184.86

Finding the Fourth Proportional to 198,589.28, 297,716.60 and 86,184.86

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Solution

The fourth proportional to 198,589.28, 297,716.60 and 86,184.86 is: 129,204.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,589.28 : 297,716.60 = 86,184.86 : x
  2. Step 2: Convert to fraction form
    198,589.28/297,716.60 = 86,184.86/x
  3. Step 3: Cross multiply
    198,589.28x = 297,716.60 × 86,184.86
  4. Step 4: Simplify right side
    198,589.28x = 25,658,663,490.68
  5. Step 5: Solve for x
    x = 25,658,663,490.68/198,589.28
  6. Step 6: Final answer
    x = 129,204.68

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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.