Home / 198,831.44-274,379.12-108,187.76

Finding the Fourth Proportional to 198,831.44, 274,379.12 and 108,187.76

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Solution

The fourth proportional to 198,831.44, 274,379.12 and 108,187.76 is: 149,294.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,831.44 : 274,379.12 = 108,187.76 : x
  2. Step 2: Convert to fraction form
    198,831.44/274,379.12 = 108,187.76/x
  3. Step 3: Cross multiply
    198,831.44x = 274,379.12 × 108,187.76
  4. Step 4: Simplify right side
    198,831.44x = 29,684,462,383.57
  5. Step 5: Solve for x
    x = 29,684,462,383.57/198,831.44
  6. Step 6: Final answer
    x = 149,294.61

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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.