Home / 198,812.65-274,362.57-108,172.44

Finding the Fourth Proportional to 198,812.65, 274,362.57 and 108,172.44

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Solution

The fourth proportional to 198,812.65, 274,362.57 and 108,172.44 is: 149,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,812.65 : 274,362.57 = 108,172.44 : x
  2. Step 2: Convert to fraction form
    198,812.65/274,362.57 = 108,172.44/x
  3. Step 3: Cross multiply
    198,812.65x = 274,362.57 × 108,172.44
  4. Step 4: Simplify right side
    198,812.65x = 29,678,467,565.69
  5. Step 5: Solve for x
    x = 29,678,467,565.69/198,812.65
  6. Step 6: Final answer
    x = 149,278.57

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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.