Home / 107,932.80-161,899.20-84,313.20

Finding the Fourth Proportional to 107,932.80, 161,899.20 and 84,313.20

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Solution

The fourth proportional to 107,932.80, 161,899.20 and 84,313.20 is: 126,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,932.80 : 161,899.20 = 84,313.20 : x
  2. Step 2: Convert to fraction form
    107,932.80/161,899.20 = 84,313.20/x
  3. Step 3: Cross multiply
    107,932.80x = 161,899.20 × 84,313.20
  4. Step 4: Simplify right side
    107,932.80x = 13,650,239,629.44
  5. Step 5: Solve for x
    x = 13,650,239,629.44/107,932.80
  6. Step 6: Final answer
    x = 126,469.80

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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.