Home / 128,544.14-192,778.94-49,640.42

Finding the Fourth Proportional to 128,544.14, 192,778.94 and 49,640.42

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Solution

The fourth proportional to 128,544.14, 192,778.94 and 49,640.42 is: 74,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,544.14 : 192,778.94 = 49,640.42 : x
  2. Step 2: Convert to fraction form
    128,544.14/192,778.94 = 49,640.42/x
  3. Step 3: Cross multiply
    128,544.14x = 192,778.94 × 49,640.42
  4. Step 4: Simplify right side
    128,544.14x = 9,569,627,548.75
  5. Step 5: Solve for x
    x = 9,569,627,548.75/128,544.14
  6. Step 6: Final answer
    x = 74,446.24

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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.