Home / 129,515.15-194,263.25-40,794.03

Finding the Fourth Proportional to 129,515.15, 194,263.25 and 40,794.03

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Solution

The fourth proportional to 129,515.15, 194,263.25 and 40,794.03 is: 61,188.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,515.15 : 194,263.25 = 40,794.03 : x
  2. Step 2: Convert to fraction form
    129,515.15/194,263.25 = 40,794.03/x
  3. Step 3: Cross multiply
    129,515.15x = 194,263.25 × 40,794.03
  4. Step 4: Simplify right side
    129,515.15x = 7,924,780,644.43
  5. Step 5: Solve for x
    x = 7,924,780,644.43/129,515.15
  6. Step 6: Final answer
    x = 61,188.06

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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.