Home / 198,663.75-274,156.02-109,239.75

Finding the Fourth Proportional to 198,663.75, 274,156.02 and 109,239.75

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Solution

The fourth proportional to 198,663.75, 274,156.02 and 109,239.75 is: 150,750.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,663.75 : 274,156.02 = 109,239.75 : x
  2. Step 2: Convert to fraction form
    198,663.75/274,156.02 = 109,239.75/x
  3. Step 3: Cross multiply
    198,663.75x = 274,156.02 × 109,239.75
  4. Step 4: Simplify right side
    198,663.75x = 29,948,735,085.80
  5. Step 5: Solve for x
    x = 29,948,735,085.80/198,663.75
  6. Step 6: Final answer
    x = 150,750.88

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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.