Home / 142,226.09-196,268.24-78,562.52

Finding the Fourth Proportional to 142,226.09, 196,268.24 and 78,562.52

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Solution

The fourth proportional to 142,226.09, 196,268.24 and 78,562.52 is: 108,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,226.09 : 196,268.24 = 78,562.52 : x
  2. Step 2: Convert to fraction form
    142,226.09/196,268.24 = 78,562.52/x
  3. Step 3: Cross multiply
    142,226.09x = 196,268.24 × 78,562.52
  4. Step 4: Simplify right side
    142,226.09x = 15,419,327,481.44
  5. Step 5: Solve for x
    x = 15,419,327,481.44/142,226.09
  6. Step 6: Final answer
    x = 108,414.20

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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.