Home / 129,971.10-194,920.20-41,251.80

Finding the Fourth Proportional to 129,971.10, 194,920.20 and 41,251.80

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Solution

The fourth proportional to 129,971.10, 194,920.20 and 41,251.80 is: 61,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,971.10 : 194,920.20 = 41,251.80 : x
  2. Step 2: Convert to fraction form
    129,971.10/194,920.20 = 41,251.80/x
  3. Step 3: Cross multiply
    129,971.10x = 194,920.20 × 41,251.80
  4. Step 4: Simplify right side
    129,971.10x = 8,040,809,106.36
  5. Step 5: Solve for x
    x = 8,040,809,106.36/129,971.10
  6. Step 6: Final answer
    x = 61,866.13

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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.