Home / 107,645.76-161,456.09-28,766.14

Finding the Fourth Proportional to 107,645.76, 161,456.09 and 28,766.14

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Solution

The fourth proportional to 107,645.76, 161,456.09 and 28,766.14 is: 43,145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,645.76 : 161,456.09 = 28,766.14 : x
  2. Step 2: Convert to fraction form
    107,645.76/161,456.09 = 28,766.14/x
  3. Step 3: Cross multiply
    107,645.76x = 161,456.09 × 28,766.14
  4. Step 4: Simplify right side
    107,645.76x = 4,644,467,941.32
  5. Step 5: Solve for x
    x = 4,644,467,941.32/107,645.76
  6. Step 6: Final answer
    x = 43,145.85

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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.