Home / 125,013.75-187,540.16-40,754.36

Finding the Fourth Proportional to 125,013.75, 187,540.16 and 40,754.36

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Solution

The fourth proportional to 125,013.75, 187,540.16 and 40,754.36 is: 61,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,013.75 : 187,540.16 = 40,754.36 : x
  2. Step 2: Convert to fraction form
    125,013.75/187,540.16 = 40,754.36/x
  3. Step 3: Cross multiply
    125,013.75x = 187,540.16 × 40,754.36
  4. Step 4: Simplify right side
    125,013.75x = 7,643,079,195.10
  5. Step 5: Solve for x
    x = 7,643,079,195.10/125,013.75
  6. Step 6: Final answer
    x = 61,137.91

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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.