Home / 167,218.38-250,909.60-78,479.10

Finding the Fourth Proportional to 167,218.38, 250,909.60 and 78,479.10

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Solution

The fourth proportional to 167,218.38, 250,909.60 and 78,479.10 is: 117,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,218.38 : 250,909.60 = 78,479.10 : x
  2. Step 2: Convert to fraction form
    167,218.38/250,909.60 = 78,479.10/x
  3. Step 3: Cross multiply
    167,218.38x = 250,909.60 × 78,479.10
  4. Step 4: Simplify right side
    167,218.38x = 19,691,159,589.36
  5. Step 5: Solve for x
    x = 19,691,159,589.36/167,218.38
  6. Step 6: Final answer
    x = 117,757.15

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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.