Home / 132,129.07-198,223.88-57,261.79

Finding the Fourth Proportional to 132,129.07, 198,223.88 and 57,261.79

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Solution

The fourth proportional to 132,129.07, 198,223.88 and 57,261.79 is: 85,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,129.07 : 198,223.88 = 57,261.79 : x
  2. Step 2: Convert to fraction form
    132,129.07/198,223.88 = 57,261.79/x
  3. Step 3: Cross multiply
    132,129.07x = 198,223.88 × 57,261.79
  4. Step 4: Simplify right side
    132,129.07x = 11,350,654,189.55
  5. Step 5: Solve for x
    x = 11,350,654,189.55/132,129.07
  6. Step 6: Final answer
    x = 85,905.81

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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.