Home / 128,112.53-192,286.37-64,976.60

Finding the Fourth Proportional to 128,112.53, 192,286.37 and 64,976.60

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Solution

The fourth proportional to 128,112.53, 192,286.37 and 64,976.60 is: 97,524.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,112.53 : 192,286.37 = 64,976.60 : x
  2. Step 2: Convert to fraction form
    128,112.53/192,286.37 = 64,976.60/x
  3. Step 3: Cross multiply
    128,112.53x = 192,286.37 × 64,976.60
  4. Step 4: Simplify right side
    128,112.53x = 12,494,115,192.10
  5. Step 5: Solve for x
    x = 12,494,115,192.10/128,112.53
  6. Step 6: Final answer
    x = 97,524.54

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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.