Home / 128,431.35-192,679.83-49,524.39

Finding the Fourth Proportional to 128,431.35, 192,679.83 and 49,524.39

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Solution

The fourth proportional to 128,431.35, 192,679.83 and 49,524.39 is: 74,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,431.35 : 192,679.83 = 49,524.39 : x
  2. Step 2: Convert to fraction form
    128,431.35/192,679.83 = 49,524.39/x
  3. Step 3: Cross multiply
    128,431.35x = 192,679.83 × 49,524.39
  4. Step 4: Simplify right side
    128,431.35x = 9,542,351,046.05
  5. Step 5: Solve for x
    x = 9,542,351,046.05/128,431.35
  6. Step 6: Final answer
    x = 74,299.23

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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.