Home / 198,920.70-274,510.29-108,276.38

Finding the Fourth Proportional to 198,920.70, 274,510.29 and 108,276.38

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Solution

The fourth proportional to 198,920.70, 274,510.29 and 108,276.38 is: 149,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,920.70 : 274,510.29 = 108,276.38 : x
  2. Step 2: Convert to fraction form
    198,920.70/274,510.29 = 108,276.38/x
  3. Step 3: Cross multiply
    198,920.70x = 274,510.29 × 108,276.38
  4. Step 4: Simplify right side
    198,920.70x = 29,722,980,473.95
  5. Step 5: Solve for x
    x = 29,722,980,473.95/198,920.70
  6. Step 6: Final answer
    x = 149,421.25

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1.5x scale

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.