Home / 198,625.17-274,104.05-107,981.94

Finding the Fourth Proportional to 198,625.17, 274,104.05 and 107,981.94

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Solution

The fourth proportional to 198,625.17, 274,104.05 and 107,981.94 is: 149,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,625.17 : 274,104.05 = 107,981.94 : x
  2. Step 2: Convert to fraction form
    198,625.17/274,104.05 = 107,981.94/x
  3. Step 3: Cross multiply
    198,625.17x = 274,104.05 × 107,981.94
  4. Step 4: Simplify right side
    198,625.17x = 29,598,287,080.86
  5. Step 5: Solve for x
    x = 29,598,287,080.86/198,625.17
  6. Step 6: Final answer
    x = 149,015.79

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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.