Home / 107,521.32-161,390.88-44,379.30

Finding the Fourth Proportional to 107,521.32, 161,390.88 and 44,379.30

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Solution

The fourth proportional to 107,521.32, 161,390.88 and 44,379.30 is: 66,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,521.32 : 161,390.88 = 44,379.30 : x
  2. Step 2: Convert to fraction form
    107,521.32/161,390.88 = 44,379.30/x
  3. Step 3: Cross multiply
    107,521.32x = 161,390.88 × 44,379.30
  4. Step 4: Simplify right side
    107,521.32x = 7,162,414,280.78
  5. Step 5: Solve for x
    x = 7,162,414,280.78/107,521.32
  6. Step 6: Final answer
    x = 66,613.90

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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.