Home / 198,623.25-274,101.84-107,979.39

Finding the Fourth Proportional to 198,623.25, 274,101.84 and 107,979.39

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Solution

The fourth proportional to 198,623.25, 274,101.84 and 107,979.39 is: 149,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,623.25 : 274,101.84 = 107,979.39 : x
  2. Step 2: Convert to fraction form
    198,623.25/274,101.84 = 107,979.39/x
  3. Step 3: Cross multiply
    198,623.25x = 274,101.84 × 107,979.39
  4. Step 4: Simplify right side
    198,623.25x = 29,597,349,481.08
  5. Step 5: Solve for x
    x = 29,597,349,481.08/198,623.25
  6. Step 6: Final answer
    x = 149,012.51

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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.