Home / 115,896.92-159,932.22-71,176.28

Finding the Fourth Proportional to 115,896.92, 159,932.22 and 71,176.28

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Solution

The fourth proportional to 115,896.92, 159,932.22 and 71,176.28 is: 98,219.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,896.92 : 159,932.22 = 71,176.28 : x
  2. Step 2: Convert to fraction form
    115,896.92/159,932.22 = 71,176.28/x
  3. Step 3: Cross multiply
    115,896.92x = 159,932.22 × 71,176.28
  4. Step 4: Simplify right side
    115,896.92x = 11,383,380,471.74
  5. Step 5: Solve for x
    x = 11,383,380,471.74/115,896.92
  6. Step 6: Final answer
    x = 98,219.87

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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.