Home / 198,655.40-274,098.66-123,167.72

Finding the Fourth Proportional to 198,655.40, 274,098.66 and 123,167.72

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Solution

The fourth proportional to 198,655.40, 274,098.66 and 123,167.72 is: 169,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,655.40 : 274,098.66 = 123,167.72 : x
  2. Step 2: Convert to fraction form
    198,655.40/274,098.66 = 123,167.72/x
  3. Step 3: Cross multiply
    198,655.40x = 274,098.66 × 123,167.72
  4. Step 4: Simplify right side
    198,655.40x = 33,760,107,007.26
  5. Step 5: Solve for x
    x = 33,760,107,007.26/198,655.40
  6. Step 6: Final answer
    x = 169,943.06

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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.