Home / 129,871.45-194,825.40-41,115.70

Finding the Fourth Proportional to 129,871.45, 194,825.40 and 41,115.70

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Solution

The fourth proportional to 129,871.45, 194,825.40 and 41,115.70 is: 61,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,871.45 : 194,825.40 = 41,115.70 : x
  2. Step 2: Convert to fraction form
    129,871.45/194,825.40 = 41,115.70/x
  3. Step 3: Cross multiply
    129,871.45x = 194,825.40 × 41,115.70
  4. Step 4: Simplify right side
    129,871.45x = 8,010,382,698.78
  5. Step 5: Solve for x
    x = 8,010,382,698.78/129,871.45
  6. Step 6: Final answer
    x = 61,679.32

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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.