Home / 198,855.48-274,421.04-108,211.38

Finding the Fourth Proportional to 198,855.48, 274,421.04 and 108,211.38

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Solution

The fourth proportional to 198,855.48, 274,421.04 and 108,211.38 is: 149,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,855.48 : 274,421.04 = 108,211.38 : x
  2. Step 2: Convert to fraction form
    198,855.48/274,421.04 = 108,211.38/x
  3. Step 3: Cross multiply
    198,855.48x = 274,421.04 × 108,211.38
  4. Step 4: Simplify right side
    198,855.48x = 29,695,479,439.44
  5. Step 5: Solve for x
    x = 29,695,479,439.44/198,855.48
  6. Step 6: Final answer
    x = 149,331.96

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1.5x scale

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.