Home / 129,986.98-194,979.94-41,247.40

Finding the Fourth Proportional to 129,986.98, 194,979.94 and 41,247.40

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Solution

The fourth proportional to 129,986.98, 194,979.94 and 41,247.40 is: 61,870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,986.98 : 194,979.94 = 41,247.40 : x
  2. Step 2: Convert to fraction form
    129,986.98/194,979.94 = 41,247.40/x
  3. Step 3: Cross multiply
    129,986.98x = 194,979.94 × 41,247.40
  4. Step 4: Simplify right side
    129,986.98x = 8,042,416,132.57
  5. Step 5: Solve for x
    x = 8,042,416,132.57/129,986.98
  6. Step 6: Final answer
    x = 61,870.94

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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.