Home / 104,359.38-156,471.03-68,712.86

Finding the Fourth Proportional to 104,359.38, 156,471.03 and 68,712.86

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Solution

The fourth proportional to 104,359.38, 156,471.03 and 68,712.86 is: 103,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,359.38 : 156,471.03 = 68,712.86 : x
  2. Step 2: Convert to fraction form
    104,359.38/156,471.03 = 68,712.86/x
  3. Step 3: Cross multiply
    104,359.38x = 156,471.03 × 68,712.86
  4. Step 4: Simplify right side
    104,359.38x = 10,751,571,196.09
  5. Step 5: Solve for x
    x = 10,751,571,196.09/104,359.38
  6. Step 6: Final answer
    x = 103,024.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.