Home / 198,877.75-274,446.04-108,231.78

Finding the Fourth Proportional to 198,877.75, 274,446.04 and 108,231.78

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Solution

The fourth proportional to 198,877.75, 274,446.04 and 108,231.78 is: 149,357.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,877.75 : 274,446.04 = 108,231.78 : x
  2. Step 2: Convert to fraction form
    198,877.75/274,446.04 = 108,231.78/x
  3. Step 3: Cross multiply
    198,877.75x = 274,446.04 × 108,231.78
  4. Step 4: Simplify right side
    198,877.75x = 29,703,783,423.15
  5. Step 5: Solve for x
    x = 29,703,783,423.15/198,877.75
  6. Step 6: Final answer
    x = 149,357.00

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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.