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Finding the Fourth Proportional to 143,704.54, 215,556.84 and 43,865.26

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Solution

The fourth proportional to 143,704.54, 215,556.84 and 43,865.26 is: 65,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,704.54 : 215,556.84 = 43,865.26 : x
  2. Step 2: Convert to fraction form
    143,704.54/215,556.84 = 43,865.26/x
  3. Step 3: Cross multiply
    143,704.54x = 215,556.84 × 43,865.26
  4. Step 4: Simplify right side
    143,704.54x = 9,455,456,831.38
  5. Step 5: Solve for x
    x = 9,455,456,831.38/143,704.54
  6. Step 6: Final answer
    x = 65,797.90

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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.