Home / 140,600.28-194,025.79-76,936.80

Finding the Fourth Proportional to 140,600.28, 194,025.79 and 76,936.80

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Solution

The fourth proportional to 140,600.28, 194,025.79 and 76,936.80 is: 106,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,600.28 : 194,025.79 = 76,936.80 : x
  2. Step 2: Convert to fraction form
    140,600.28/194,025.79 = 76,936.80/x
  3. Step 3: Cross multiply
    140,600.28x = 194,025.79 × 76,936.80
  4. Step 4: Simplify right side
    140,600.28x = 14,927,723,400.07
  5. Step 5: Solve for x
    x = 14,927,723,400.07/140,600.28
  6. Step 6: Final answer
    x = 106,171.36

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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.