Home / 198,857.72-274,429.42-108,219.52

Finding the Fourth Proportional to 198,857.72, 274,429.42 and 108,219.52

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Solution

The fourth proportional to 198,857.72, 274,429.42 and 108,219.52 is: 149,346.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,857.72 : 274,429.42 = 108,219.52 : x
  2. Step 2: Convert to fraction form
    198,857.72/274,429.42 = 108,219.52/x
  3. Step 3: Cross multiply
    198,857.72x = 274,429.42 × 108,219.52
  4. Step 4: Simplify right side
    198,857.72x = 29,698,620,106.28
  5. Step 5: Solve for x
    x = 29,698,620,106.28/198,857.72
  6. Step 6: Final answer
    x = 149,346.08

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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.