Home / 198,820.80-274,373.30-108,176.80

Finding the Fourth Proportional to 198,820.80, 274,373.30 and 108,176.80

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Solution

The fourth proportional to 198,820.80, 274,373.30 and 108,176.80 is: 149,284.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,820.80 : 274,373.30 = 108,176.80 : x
  2. Step 2: Convert to fraction form
    198,820.80/274,373.30 = 108,176.80/x
  3. Step 3: Cross multiply
    198,820.80x = 274,373.30 × 108,176.80
  4. Step 4: Simplify right side
    198,820.80x = 29,680,825,599.44
  5. Step 5: Solve for x
    x = 29,680,825,599.44/198,820.80
  6. Step 6: Final answer
    x = 149,284.31

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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.