Home / 198,919.72-274,514.52-108,281.79

Finding the Fourth Proportional to 198,919.72, 274,514.52 and 108,281.79

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Solution

The fourth proportional to 198,919.72, 274,514.52 and 108,281.79 is: 149,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,919.72 : 274,514.52 = 108,281.79 : x
  2. Step 2: Convert to fraction form
    198,919.72/274,514.52 = 108,281.79/x
  3. Step 3: Cross multiply
    198,919.72x = 274,514.52 × 108,281.79
  4. Step 4: Simplify right side
    198,919.72x = 29,724,922,631.49
  5. Step 5: Solve for x
    x = 29,724,922,631.49/198,919.72
  6. Step 6: Final answer
    x = 149,431.75

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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.