Home / 140,712.78-194,183.94-76,182.69

Finding the Fourth Proportional to 140,712.78, 194,183.94 and 76,182.69

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Solution

The fourth proportional to 140,712.78, 194,183.94 and 76,182.69 is: 105,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712.78 : 194,183.94 = 76,182.69 : x
  2. Step 2: Convert to fraction form
    140,712.78/194,183.94 = 76,182.69/x
  3. Step 3: Cross multiply
    140,712.78x = 194,183.94 × 76,182.69
  4. Step 4: Simplify right side
    140,712.78x = 14,793,454,904.00
  5. Step 5: Solve for x
    x = 14,793,454,904.00/140,712.78
  6. Step 6: Final answer
    x = 105,132.28

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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.