Home / 122,786.28-184,179.42-87,794.28

Finding the Fourth Proportional to 122,786.28, 184,179.42 and 87,794.28

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Solution

The fourth proportional to 122,786.28, 184,179.42 and 87,794.28 is: 131,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,786.28 : 184,179.42 = 87,794.28 : x
  2. Step 2: Convert to fraction form
    122,786.28/184,179.42 = 87,794.28/x
  3. Step 3: Cross multiply
    122,786.28x = 184,179.42 × 87,794.28
  4. Step 4: Simplify right side
    122,786.28x = 16,169,899,569.72
  5. Step 5: Solve for x
    x = 16,169,899,569.72/122,786.28
  6. Step 6: Final answer
    x = 131,691.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.