Home / 198,928.70-274,525.10-108,287.27

Finding the Fourth Proportional to 198,928.70, 274,525.10 and 108,287.27

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Solution

The fourth proportional to 198,928.70, 274,525.10 and 108,287.27 is: 149,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,928.70 : 274,525.10 = 108,287.27 : x
  2. Step 2: Convert to fraction form
    198,928.70/274,525.10 = 108,287.27/x
  3. Step 3: Cross multiply
    198,928.70x = 274,525.10 × 108,287.27
  4. Step 4: Simplify right side
    198,928.70x = 29,727,572,523.57
  5. Step 5: Solve for x
    x = 29,727,572,523.57/198,928.70
  6. Step 6: Final answer
    x = 149,438.33

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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.