Home / 140,687.82-194,149.10-77,025.60

Finding the Fourth Proportional to 140,687.82, 194,149.10 and 77,025.60

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Solution

The fourth proportional to 140,687.82, 194,149.10 and 77,025.60 is: 106,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,687.82 : 194,149.10 = 77,025.60 : x
  2. Step 2: Convert to fraction form
    140,687.82/194,149.10 = 77,025.60/x
  3. Step 3: Cross multiply
    140,687.82x = 194,149.10 × 77,025.60
  4. Step 4: Simplify right side
    140,687.82x = 14,954,451,109.52
  5. Step 5: Solve for x
    x = 14,954,451,109.52/140,687.82
  6. Step 6: Final answer
    x = 106,295.28

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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.