Home / 141,863.27-195,771.74-78,199.70

Finding the Fourth Proportional to 141,863.27, 195,771.74 and 78,199.70

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Solution

The fourth proportional to 141,863.27, 195,771.74 and 78,199.70 is: 107,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,863.27 : 195,771.74 = 78,199.70 : x
  2. Step 2: Convert to fraction form
    141,863.27/195,771.74 = 78,199.70/x
  3. Step 3: Cross multiply
    141,863.27x = 195,771.74 × 78,199.70
  4. Step 4: Simplify right side
    141,863.27x = 15,309,289,966.62
  5. Step 5: Solve for x
    x = 15,309,289,966.62/141,863.27
  6. Step 6: Final answer
    x = 107,915.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.