Home / 198,964.19-274,572.24-108,320.78

Finding the Fourth Proportional to 198,964.19, 274,572.24 and 108,320.78

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Solution

The fourth proportional to 198,964.19, 274,572.24 and 108,320.78 is: 149,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,964.19 : 274,572.24 = 108,320.78 : x
  2. Step 2: Convert to fraction form
    198,964.19/274,572.24 = 108,320.78/x
  3. Step 3: Cross multiply
    198,964.19x = 274,572.24 × 108,320.78
  4. Step 4: Simplify right side
    198,964.19x = 29,741,878,932.35
  5. Step 5: Solve for x
    x = 29,741,878,932.35/198,964.19
  6. Step 6: Final answer
    x = 149,483.58

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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.