Home / 198,013.78-273,306.29-117,488.04

Finding the Fourth Proportional to 198,013.78, 273,306.29 and 117,488.04

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Solution

The fourth proportional to 198,013.78, 273,306.29 and 117,488.04 is: 162,161.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,013.78 : 273,306.29 = 117,488.04 : x
  2. Step 2: Convert to fraction form
    198,013.78/273,306.29 = 117,488.04/x
  3. Step 3: Cross multiply
    198,013.78x = 273,306.29 × 117,488.04
  4. Step 4: Simplify right side
    198,013.78x = 32,110,218,719.43
  5. Step 5: Solve for x
    x = 32,110,218,719.43/198,013.78
  6. Step 6: Final answer
    x = 162,161.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.