Home / 203,939.73-305,917.27-77,556.41

Finding the Fourth Proportional to 203,939.73, 305,917.27 and 77,556.41

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Solution

The fourth proportional to 203,939.73, 305,917.27 and 77,556.41 is: 116,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,939.73 : 305,917.27 = 77,556.41 : x
  2. Step 2: Convert to fraction form
    203,939.73/305,917.27 = 77,556.41/x
  3. Step 3: Cross multiply
    203,939.73x = 305,917.27 × 77,556.41
  4. Step 4: Simplify right side
    203,939.73x = 23,725,845,218.20
  5. Step 5: Solve for x
    x = 23,725,845,218.20/203,939.73
  6. Step 6: Final answer
    x = 116,337.53

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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.