Home / 198,628.52-274,112.76-107,990.58

Finding the Fourth Proportional to 198,628.52, 274,112.76 and 107,990.58

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Solution

The fourth proportional to 198,628.52, 274,112.76 and 107,990.58 is: 149,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,628.52 : 274,112.76 = 107,990.58 : x
  2. Step 2: Convert to fraction form
    198,628.52/274,112.76 = 107,990.58/x
  3. Step 3: Cross multiply
    198,628.52x = 274,112.76 × 107,990.58
  4. Step 4: Simplify right side
    198,628.52x = 29,601,595,937.80
  5. Step 5: Solve for x
    x = 29,601,595,937.80/198,628.52
  6. Step 6: Final answer
    x = 149,029.94

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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.