Home / 198,861.41-274,434.53-108,223.22

Finding the Fourth Proportional to 198,861.41, 274,434.53 and 108,223.22

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Solution

The fourth proportional to 198,861.41, 274,434.53 and 108,223.22 is: 149,351.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,861.41 : 274,434.53 = 108,223.22 : x
  2. Step 2: Convert to fraction form
    198,861.41/274,434.53 = 108,223.22/x
  3. Step 3: Cross multiply
    198,861.41x = 274,434.53 × 108,223.22
  4. Step 4: Simplify right side
    198,861.41x = 29,700,188,660.76
  5. Step 5: Solve for x
    x = 29,700,188,660.76/198,861.41
  6. Step 6: Final answer
    x = 149,351.19

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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.