Home / 151,781.20-227,817.60-76,985.80

Finding the Fourth Proportional to 151,781.20, 227,817.60 and 76,985.80

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Solution

The fourth proportional to 151,781.20, 227,817.60 and 76,985.80 is: 115,552.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781.20 : 227,817.60 = 76,985.80 : x
  2. Step 2: Convert to fraction form
    151,781.20/227,817.60 = 76,985.80/x
  3. Step 3: Cross multiply
    151,781.20x = 227,817.60 × 76,985.80
  4. Step 4: Simplify right side
    151,781.20x = 17,538,720,190.08
  5. Step 5: Solve for x
    x = 17,538,720,190.08/151,781.20
  6. Step 6: Final answer
    x = 115,552.65

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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.