Home / 198,921.26-274,515.82-112,885.90

Finding the Fourth Proportional to 198,921.26, 274,515.82 and 112,885.90

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Solution

The fourth proportional to 198,921.26, 274,515.82 and 112,885.90 is: 155,785.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,921.26 : 274,515.82 = 112,885.90 : x
  2. Step 2: Convert to fraction form
    198,921.26/274,515.82 = 112,885.90/x
  3. Step 3: Cross multiply
    198,921.26x = 274,515.82 × 112,885.90
  4. Step 4: Simplify right side
    198,921.26x = 30,988,965,404.94
  5. Step 5: Solve for x
    x = 30,988,965,404.94/198,921.26
  6. Step 6: Final answer
    x = 155,785.09

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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.