Home / 218,233.38-327,430.03-91,905.43

Finding the Fourth Proportional to 218,233.38, 327,430.03 and 91,905.43

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Solution

The fourth proportional to 218,233.38, 327,430.03 and 91,905.43 is: 137,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,233.38 : 327,430.03 = 91,905.43 : x
  2. Step 2: Convert to fraction form
    218,233.38/327,430.03 = 91,905.43/x
  3. Step 3: Cross multiply
    218,233.38x = 327,430.03 × 91,905.43
  4. Step 4: Simplify right side
    218,233.38x = 30,092,597,113.25
  5. Step 5: Solve for x
    x = 30,092,597,113.25/218,233.38
  6. Step 6: Final answer
    x = 137,891.82

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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.