Home / 198,788.85-274,322.36-108,142.48

Finding the Fourth Proportional to 198,788.85, 274,322.36 and 108,142.48

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Solution

The fourth proportional to 198,788.85, 274,322.36 and 108,142.48 is: 149,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,788.85 : 274,322.36 = 108,142.48 : x
  2. Step 2: Convert to fraction form
    198,788.85/274,322.36 = 108,142.48/x
  3. Step 3: Cross multiply
    198,788.85x = 274,322.36 × 108,142.48
  4. Step 4: Simplify right side
    198,788.85x = 29,665,900,101.12
  5. Step 5: Solve for x
    x = 29,665,900,101.12/198,788.85
  6. Step 6: Final answer
    x = 149,233.22

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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.