Home / 129,447.54-194,171.31-40,708.80

Finding the Fourth Proportional to 129,447.54, 194,171.31 and 40,708.80

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Solution

The fourth proportional to 129,447.54, 194,171.31 and 40,708.80 is: 61,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,447.54 : 194,171.31 = 40,708.80 : x
  2. Step 2: Convert to fraction form
    129,447.54/194,171.31 = 40,708.80/x
  3. Step 3: Cross multiply
    129,447.54x = 194,171.31 × 40,708.80
  4. Step 4: Simplify right side
    129,447.54x = 7,904,481,024.53
  5. Step 5: Solve for x
    x = 7,904,481,024.53/129,447.54
  6. Step 6: Final answer
    x = 61,063.20

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1.5x scale

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.