Home / 198,654.23-274,142.60-108,009.97

Finding the Fourth Proportional to 198,654.23, 274,142.60 and 108,009.97

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Solution

The fourth proportional to 198,654.23, 274,142.60 and 108,009.97 is: 149,053.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,654.23 : 274,142.60 = 108,009.97 : x
  2. Step 2: Convert to fraction form
    198,654.23/274,142.60 = 108,009.97/x
  3. Step 3: Cross multiply
    198,654.23x = 274,142.60 × 108,009.97
  4. Step 4: Simplify right side
    198,654.23x = 29,610,134,001.72
  5. Step 5: Solve for x
    x = 29,610,134,001.72/198,654.23
  6. Step 6: Final answer
    x = 149,053.63

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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.