Home / 198,634.90-274,121.57-107,996.97

Finding the Fourth Proportional to 198,634.90, 274,121.57 and 107,996.97

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Solution

The fourth proportional to 198,634.90, 274,121.57 and 107,996.97 is: 149,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,634.90 : 274,121.57 = 107,996.97 : x
  2. Step 2: Convert to fraction form
    198,634.90/274,121.57 = 107,996.97/x
  3. Step 3: Cross multiply
    198,634.90x = 274,121.57 × 107,996.97
  4. Step 4: Simplify right side
    198,634.90x = 29,604,298,971.64
  5. Step 5: Solve for x
    x = 29,604,298,971.64/198,634.90
  6. Step 6: Final answer
    x = 149,038.76

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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.