Home / 129,662.20-194,234.10-74,193.40

Finding the Fourth Proportional to 129,662.20, 194,234.10 and 74,193.40

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Solution

The fourth proportional to 129,662.20, 194,234.10 and 74,193.40 is: 111,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,662.20 : 194,234.10 = 74,193.40 : x
  2. Step 2: Convert to fraction form
    129,662.20/194,234.10 = 74,193.40/x
  3. Step 3: Cross multiply
    129,662.20x = 194,234.10 × 74,193.40
  4. Step 4: Simplify right side
    129,662.20x = 14,410,888,274.94
  5. Step 5: Solve for x
    x = 14,410,888,274.94/129,662.20
  6. Step 6: Final answer
    x = 111,141.78

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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.