Home / 198,818.61-274,279.28-118,200.39

Finding the Fourth Proportional to 198,818.61, 274,279.28 and 118,200.39

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Solution

The fourth proportional to 198,818.61, 274,279.28 and 118,200.39 is: 163,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,818.61 : 274,279.28 = 118,200.39 : x
  2. Step 2: Convert to fraction form
    198,818.61/274,279.28 = 118,200.39/x
  3. Step 3: Cross multiply
    198,818.61x = 274,279.28 × 118,200.39
  4. Step 4: Simplify right side
    198,818.61x = 32,419,917,273.92
  5. Step 5: Solve for x
    x = 32,419,917,273.92/198,818.61
  6. Step 6: Final answer
    x = 163,062.79

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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.