Home / 198,821.16-274,365-108,177.48

Finding the Fourth Proportional to 198,821.16, 274,365 and 108,177.48

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Solution

The fourth proportional to 198,821.16, 274,365 and 108,177.48 is: 149,280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,821.16 : 274,365 = 108,177.48 : x
  2. Step 2: Convert to fraction form
    198,821.16/274,365 = 108,177.48/x
  3. Step 3: Cross multiply
    198,821.16x = 274,365 × 108,177.48
  4. Step 4: Simplify right side
    198,821.16x = 29,680,114,300.20
  5. Step 5: Solve for x
    x = 29,680,114,300.20/198,821.16
  6. Step 6: Final answer
    x = 149,280.46

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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.