Home / 123,243.28-169,997.44-80,804.56

Finding the Fourth Proportional to 123,243.28, 169,997.44 and 80,804.56

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Solution

The fourth proportional to 123,243.28, 169,997.44 and 80,804.56 is: 111,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,243.28 : 169,997.44 = 80,804.56 : x
  2. Step 2: Convert to fraction form
    123,243.28/169,997.44 = 80,804.56/x
  3. Step 3: Cross multiply
    123,243.28x = 169,997.44 × 80,804.56
  4. Step 4: Simplify right side
    123,243.28x = 13,736,568,340.33
  5. Step 5: Solve for x
    x = 13,736,568,340.33/123,243.28
  6. Step 6: Final answer
    x = 111,458.96

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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.