Home / 198,756.38-274,234.76-122,287.93

Finding the Fourth Proportional to 198,756.38, 274,234.76 and 122,287.93

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Solution

The fourth proportional to 198,756.38, 274,234.76 and 122,287.93 is: 168,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,756.38 : 274,234.76 = 122,287.93 : x
  2. Step 2: Convert to fraction form
    198,756.38/274,234.76 = 122,287.93/x
  3. Step 3: Cross multiply
    198,756.38x = 274,234.76 × 122,287.93
  4. Step 4: Simplify right side
    198,756.38x = 33,535,600,983.87
  5. Step 5: Solve for x
    x = 33,535,600,983.87/198,756.38
  6. Step 6: Final answer
    x = 168,727.17

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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.