Home / 198,711.57-274,083.17-134,938.65

Finding the Fourth Proportional to 198,711.57, 274,083.17 and 134,938.65

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Solution

The fourth proportional to 198,711.57, 274,083.17 and 134,938.65 is: 186,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,711.57 : 274,083.17 = 134,938.65 : x
  2. Step 2: Convert to fraction form
    198,711.57/274,083.17 = 134,938.65/x
  3. Step 3: Cross multiply
    198,711.57x = 274,083.17 × 134,938.65
  4. Step 4: Simplify right side
    198,711.57x = 36,984,412,272.83
  5. Step 5: Solve for x
    x = 36,984,412,272.83/198,711.57
  6. Step 6: Final answer
    x = 186,121.08

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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.