Home / 151,385.16-227,250-76,589.76

Finding the Fourth Proportional to 151,385.16, 227,250 and 76,589.76

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Solution

The fourth proportional to 151,385.16, 227,250 and 76,589.76 is: 114,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,385.16 : 227,250 = 76,589.76 : x
  2. Step 2: Convert to fraction form
    151,385.16/227,250 = 76,589.76/x
  3. Step 3: Cross multiply
    151,385.16x = 227,250 × 76,589.76
  4. Step 4: Simplify right side
    151,385.16x = 17,405,022,960
  5. Step 5: Solve for x
    x = 17,405,022,960/151,385.16
  6. Step 6: Final answer
    x = 114,971.79

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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.