Home / 103,040.57-154,359.62-71,013.97

Finding the Fourth Proportional to 103,040.57, 154,359.62 and 71,013.97

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Solution

The fourth proportional to 103,040.57, 154,359.62 and 71,013.97 is: 106,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,040.57 : 154,359.62 = 71,013.97 : x
  2. Step 2: Convert to fraction form
    103,040.57/154,359.62 = 71,013.97/x
  3. Step 3: Cross multiply
    103,040.57x = 154,359.62 × 71,013.97
  4. Step 4: Simplify right side
    103,040.57x = 10,961,689,059.25
  5. Step 5: Solve for x
    x = 10,961,689,059.25/103,040.57
  6. Step 6: Final answer
    x = 106,382.26

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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.