Home / 113,940.12-170,761.44-82,456.20

Finding the Fourth Proportional to 113,940.12, 170,761.44 and 82,456.20

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Solution

The fourth proportional to 113,940.12, 170,761.44 and 82,456.20 is: 123,576.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,940.12 : 170,761.44 = 82,456.20 : x
  2. Step 2: Convert to fraction form
    113,940.12/170,761.44 = 82,456.20/x
  3. Step 3: Cross multiply
    113,940.12x = 170,761.44 × 82,456.20
  4. Step 4: Simplify right side
    113,940.12x = 14,080,339,448.93
  5. Step 5: Solve for x
    x = 14,080,339,448.93/113,940.12
  6. Step 6: Final answer
    x = 123,576.66

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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.