Home / 198,975.42-274,584.43-108,331.20

Finding the Fourth Proportional to 198,975.42, 274,584.43 and 108,331.20

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Solution

The fourth proportional to 198,975.42, 274,584.43 and 108,331.20 is: 149,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,975.42 : 274,584.43 = 108,331.20 : x
  2. Step 2: Convert to fraction form
    198,975.42/274,584.43 = 108,331.20/x
  3. Step 3: Cross multiply
    198,975.42x = 274,584.43 × 108,331.20
  4. Step 4: Simplify right side
    198,975.42x = 29,746,060,803.22
  5. Step 5: Solve for x
    x = 29,746,060,803.22/198,975.42
  6. Step 6: Final answer
    x = 149,496.16

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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.