Home / 198,935.20-274,534.08-108,293.76

Finding the Fourth Proportional to 198,935.20, 274,534.08 and 108,293.76

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Solution

The fourth proportional to 198,935.20, 274,534.08 and 108,293.76 is: 149,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,935.20 : 274,534.08 = 108,293.76 : x
  2. Step 2: Convert to fraction form
    198,935.20/274,534.08 = 108,293.76/x
  3. Step 3: Cross multiply
    198,935.20x = 274,534.08 × 108,293.76
  4. Step 4: Simplify right side
    198,935.20x = 29,730,327,771.34
  5. Step 5: Solve for x
    x = 29,730,327,771.34/198,935.20
  6. Step 6: Final answer
    x = 149,447.30

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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.