Home / 198,987.92-274,594.14-108,343.61

Finding the Fourth Proportional to 198,987.92, 274,594.14 and 108,343.61

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Solution

The fourth proportional to 198,987.92, 274,594.14 and 108,343.61 is: 149,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,987.92 : 274,594.14 = 108,343.61 : x
  2. Step 2: Convert to fraction form
    198,987.92/274,594.14 = 108,343.61/x
  3. Step 3: Cross multiply
    198,987.92x = 274,594.14 × 108,343.61
  4. Step 4: Simplify right side
    198,987.92x = 29,750,519,039.47
  5. Step 5: Solve for x
    x = 29,750,519,039.47/198,987.92
  6. Step 6: Final answer
    x = 149,509.18

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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.