Home / 198,821.23-274,365.08-108,177.56

Finding the Fourth Proportional to 198,821.23, 274,365.08 and 108,177.56

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Solution

The fourth proportional to 198,821.23, 274,365.08 and 108,177.56 is: 149,280.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,821.23 : 274,365.08 = 108,177.56 : x
  2. Step 2: Convert to fraction form
    198,821.23/274,365.08 = 108,177.56/x
  3. Step 3: Cross multiply
    198,821.23x = 274,365.08 × 108,177.56
  4. Step 4: Simplify right side
    198,821.23x = 29,680,144,362.72
  5. Step 5: Solve for x
    x = 29,680,144,362.72/198,821.23
  6. Step 6: Final answer
    x = 149,280.56

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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.