Home / 198,975.42-274,584.39-108,331.15

Finding the Fourth Proportional to 198,975.42, 274,584.39 and 108,331.15

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Solution

The fourth proportional to 198,975.42, 274,584.39 and 108,331.15 is: 149,496.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,975.42 : 274,584.39 = 108,331.15 : x
  2. Step 2: Convert to fraction form
    198,975.42/274,584.39 = 108,331.15/x
  3. Step 3: Cross multiply
    198,975.42x = 274,584.39 × 108,331.15
  4. Step 4: Simplify right side
    198,975.42x = 29,746,042,740.75
  5. Step 5: Solve for x
    x = 29,746,042,740.75/198,975.42
  6. Step 6: Final answer
    x = 149,496.07

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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.