Home / 140,919.57-194,481.27-77,269.77

Finding the Fourth Proportional to 140,919.57, 194,481.27 and 77,269.77

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Solution

The fourth proportional to 140,919.57, 194,481.27 and 77,269.77 is: 106,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919.57 : 194,481.27 = 77,269.77 : x
  2. Step 2: Convert to fraction form
    140,919.57/194,481.27 = 77,269.77/x
  3. Step 3: Cross multiply
    140,919.57x = 194,481.27 × 77,269.77
  4. Step 4: Simplify right side
    140,919.57x = 15,027,523,002.21
  5. Step 5: Solve for x
    x = 15,027,523,002.21/140,919.57
  6. Step 6: Final answer
    x = 106,639.01

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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.