Home / 198,755.78-274,290.10-113,889.24

Finding the Fourth Proportional to 198,755.78, 274,290.10 and 113,889.24

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Solution

The fourth proportional to 198,755.78, 274,290.10 and 113,889.24 is: 157,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,755.78 : 274,290.10 = 113,889.24 : x
  2. Step 2: Convert to fraction form
    198,755.78/274,290.10 = 113,889.24/x
  3. Step 3: Cross multiply
    198,755.78x = 274,290.10 × 113,889.24
  4. Step 4: Simplify right side
    198,755.78x = 31,238,690,743.80
  5. Step 5: Solve for x
    x = 31,238,690,743.80/198,755.78
  6. Step 6: Final answer
    x = 157,171.24

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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.