Home / 111,786.27-154,286.97-64,071.60

Finding the Fourth Proportional to 111,786.27, 154,286.97 and 64,071.60

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Solution

The fourth proportional to 111,786.27, 154,286.97 and 64,071.60 is: 88,431.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,786.27 : 154,286.97 = 64,071.60 : x
  2. Step 2: Convert to fraction form
    111,786.27/154,286.97 = 64,071.60/x
  3. Step 3: Cross multiply
    111,786.27x = 154,286.97 × 64,071.60
  4. Step 4: Simplify right side
    111,786.27x = 9,885,413,027.05
  5. Step 5: Solve for x
    x = 9,885,413,027.05/111,786.27
  6. Step 6: Final answer
    x = 88,431.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.