Home / 128,968.92-193,336.60-45,843.48

Finding the Fourth Proportional to 128,968.92, 193,336.60 and 45,843.48

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Solution

The fourth proportional to 128,968.92, 193,336.60 and 45,843.48 is: 68,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,968.92 : 193,336.60 = 45,843.48 : x
  2. Step 2: Convert to fraction form
    128,968.92/193,336.60 = 45,843.48/x
  3. Step 3: Cross multiply
    128,968.92x = 193,336.60 × 45,843.48
  4. Step 4: Simplify right side
    128,968.92x = 8,863,222,555.37
  5. Step 5: Solve for x
    x = 8,863,222,555.37/128,968.92
  6. Step 6: Final answer
    x = 68,723.71

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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.