Home / 198,816.88-274,370.12-108,172.91

Finding the Fourth Proportional to 198,816.88, 274,370.12 and 108,172.91

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Solution

The fourth proportional to 198,816.88, 274,370.12 and 108,172.91 is: 149,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,816.88 : 274,370.12 = 108,172.91 : x
  2. Step 2: Convert to fraction form
    198,816.88/274,370.12 = 108,172.91/x
  3. Step 3: Cross multiply
    198,816.88x = 274,370.12 × 108,172.91
  4. Step 4: Simplify right side
    198,816.88x = 29,679,414,297.45
  5. Step 5: Solve for x
    x = 29,679,414,297.45/198,816.88
  6. Step 6: Final answer
    x = 149,280.15

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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.