Home / 107,709.38-161,561.76-28,823.60

Finding the Fourth Proportional to 107,709.38, 161,561.76 and 28,823.60

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Solution

The fourth proportional to 107,709.38, 161,561.76 and 28,823.60 is: 43,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,709.38 : 161,561.76 = 28,823.60 : x
  2. Step 2: Convert to fraction form
    107,709.38/161,561.76 = 28,823.60/x
  3. Step 3: Cross multiply
    107,709.38x = 161,561.76 × 28,823.60
  4. Step 4: Simplify right side
    107,709.38x = 4,656,791,545.54
  5. Step 5: Solve for x
    x = 4,656,791,545.54/107,709.38
  6. Step 6: Final answer
    x = 43,234.78

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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.