Home / 129,861.27-194,803.05-45,614.12

Finding the Fourth Proportional to 129,861.27, 194,803.05 and 45,614.12

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Solution

The fourth proportional to 129,861.27, 194,803.05 and 45,614.12 is: 68,425.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,861.27 : 194,803.05 = 45,614.12 : x
  2. Step 2: Convert to fraction form
    129,861.27/194,803.05 = 45,614.12/x
  3. Step 3: Cross multiply
    129,861.27x = 194,803.05 × 45,614.12
  4. Step 4: Simplify right side
    129,861.27x = 8,885,768,725.05
  5. Step 5: Solve for x
    x = 8,885,768,725.05/129,861.27
  6. Step 6: Final answer
    x = 68,425.09

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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.