Home / 132,240.38-198,287.67-68,902.43

Finding the Fourth Proportional to 132,240.38, 198,287.67 and 68,902.43

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Solution

The fourth proportional to 132,240.38, 198,287.67 and 68,902.43 is: 103,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,240.38 : 198,287.67 = 68,902.43 : x
  2. Step 2: Convert to fraction form
    132,240.38/198,287.67 = 68,902.43/x
  3. Step 3: Cross multiply
    132,240.38x = 198,287.67 × 68,902.43
  4. Step 4: Simplify right side
    132,240.38x = 13,662,502,302.04
  5. Step 5: Solve for x
    x = 13,662,502,302.04/132,240.38
  6. Step 6: Final answer
    x = 103,315.66

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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.