Home / 198,791.92-274,332.64-108,147.60

Finding the Fourth Proportional to 198,791.92, 274,332.64 and 108,147.60

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Solution

The fourth proportional to 198,791.92, 274,332.64 and 108,147.60 is: 149,243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,791.92 : 274,332.64 = 108,147.60 : x
  2. Step 2: Convert to fraction form
    198,791.92/274,332.64 = 108,147.60/x
  3. Step 3: Cross multiply
    198,791.92x = 274,332.64 × 108,147.60
  4. Step 4: Simplify right side
    198,791.92x = 29,668,416,617.66
  5. Step 5: Solve for x
    x = 29,668,416,617.66/198,791.92
  6. Step 6: Final answer
    x = 149,243.57

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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.