Home / 198,722.16-274,238.46-108,078.84

Finding the Fourth Proportional to 198,722.16, 274,238.46 and 108,078.84

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Solution

The fourth proportional to 198,722.16, 274,238.46 and 108,078.84 is: 149,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,722.16 : 274,238.46 = 108,078.84 : x
  2. Step 2: Convert to fraction form
    198,722.16/274,238.46 = 108,078.84/x
  3. Step 3: Cross multiply
    198,722.16x = 274,238.46 × 108,078.84
  4. Step 4: Simplify right side
    198,722.16x = 29,639,374,640.19
  5. Step 5: Solve for x
    x = 29,639,374,640.19/198,722.16
  6. Step 6: Final answer
    x = 149,149.82

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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.