Home / 151,731.20-227,726.40-67,620.80

Finding the Fourth Proportional to 151,731.20, 227,726.40 and 67,620.80

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Solution

The fourth proportional to 151,731.20, 227,726.40 and 67,620.80 is: 101,488.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731.20 : 227,726.40 = 67,620.80 : x
  2. Step 2: Convert to fraction form
    151,731.20/227,726.40 = 67,620.80/x
  3. Step 3: Cross multiply
    151,731.20x = 227,726.40 × 67,620.80
  4. Step 4: Simplify right side
    151,731.20x = 15,399,041,349.12
  5. Step 5: Solve for x
    x = 15,399,041,349.12/151,731.20
  6. Step 6: Final answer
    x = 101,488.96

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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.