Home / 123,576.50-170,469.80-75,193.18

Finding the Fourth Proportional to 123,576.50, 170,469.80 and 75,193.18

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Solution

The fourth proportional to 123,576.50, 170,469.80 and 75,193.18 is: 103,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,576.50 : 170,469.80 = 75,193.18 : x
  2. Step 2: Convert to fraction form
    123,576.50/170,469.80 = 75,193.18/x
  3. Step 3: Cross multiply
    123,576.50x = 170,469.80 × 75,193.18
  4. Step 4: Simplify right side
    123,576.50x = 12,818,165,835.80
  5. Step 5: Solve for x
    x = 12,818,165,835.80/123,576.50
  6. Step 6: Final answer
    x = 103,726.56

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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.