Home / 141,856.44-195,761.92-78,195.64

Finding the Fourth Proportional to 141,856.44, 195,761.92 and 78,195.64

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Solution

The fourth proportional to 141,856.44, 195,761.92 and 78,195.64 is: 107,910.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.44 : 195,761.92 = 78,195.64 : x
  2. Step 2: Convert to fraction form
    141,856.44/195,761.92 = 78,195.64/x
  3. Step 3: Cross multiply
    141,856.44x = 195,761.92 × 78,195.64
  4. Step 4: Simplify right side
    141,856.44x = 15,307,728,622.03
  5. Step 5: Solve for x
    x = 15,307,728,622.03/141,856.44
  6. Step 6: Final answer
    x = 107,910.00

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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.