Home / 128,019.39-192,084.41-49,115.16

Finding the Fourth Proportional to 128,019.39, 192,084.41 and 49,115.16

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Solution

The fourth proportional to 128,019.39, 192,084.41 and 49,115.16 is: 73,693.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,019.39 : 192,084.41 = 49,115.16 : x
  2. Step 2: Convert to fraction form
    128,019.39/192,084.41 = 49,115.16/x
  3. Step 3: Cross multiply
    128,019.39x = 192,084.41 × 49,115.16
  4. Step 4: Simplify right side
    128,019.39x = 9,434,256,653.44
  5. Step 5: Solve for x
    x = 9,434,256,653.44/128,019.39
  6. Step 6: Final answer
    x = 73,693.97

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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.