Home / 140,881.05-194,435.78-87,183.38

Finding the Fourth Proportional to 140,881.05, 194,435.78 and 87,183.38

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Solution

The fourth proportional to 140,881.05, 194,435.78 and 87,183.38 is: 120,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,881.05 : 194,435.78 = 87,183.38 : x
  2. Step 2: Convert to fraction form
    140,881.05/194,435.78 = 87,183.38/x
  3. Step 3: Cross multiply
    140,881.05x = 194,435.78 × 87,183.38
  4. Step 4: Simplify right side
    140,881.05x = 16,951,567,085.24
  5. Step 5: Solve for x
    x = 16,951,567,085.24/140,881.05
  6. Step 6: Final answer
    x = 120,325.39

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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.