Home / 198,644.96-274,138.00-108,000.65

Finding the Fourth Proportional to 198,644.96, 274,138.00 and 108,000.65

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Solution

The fourth proportional to 198,644.96, 274,138.00 and 108,000.65 is: 149,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,644.96 : 274,138.00 = 108,000.65 : x
  2. Step 2: Convert to fraction form
    198,644.96/274,138.00 = 108,000.65/x
  3. Step 3: Cross multiply
    198,644.96x = 274,138.00 × 108,000.65
  4. Step 4: Simplify right side
    198,644.96x = 29,607,082,605.04
  5. Step 5: Solve for x
    x = 29,607,082,605.04/198,644.96
  6. Step 6: Final answer
    x = 149,045.22

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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.