Home / 151,152.30-227,137.66-81,081.90

Finding the Fourth Proportional to 151,152.30, 227,137.66 and 81,081.90

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Solution

The fourth proportional to 151,152.30, 227,137.66 and 81,081.90 is: 121,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,152.30 : 227,137.66 = 81,081.90 : x
  2. Step 2: Convert to fraction form
    151,152.30/227,137.66 = 81,081.90/x
  3. Step 3: Cross multiply
    151,152.30x = 227,137.66 × 81,081.90
  4. Step 4: Simplify right side
    151,152.30x = 18,416,753,034.35
  5. Step 5: Solve for x
    x = 18,416,753,034.35/151,152.30
  6. Step 6: Final answer
    x = 121,842.36

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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.