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Finding the Fourth Proportional to 100,820.54, 151,324.22 and 50,935.79

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Solution

The fourth proportional to 100,820.54, 151,324.22 and 50,935.79 is: 76,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,820.54 : 151,324.22 = 50,935.79 : x
  2. Step 2: Convert to fraction form
    100,820.54/151,324.22 = 50,935.79/x
  3. Step 3: Cross multiply
    100,820.54x = 151,324.22 × 50,935.79
  4. Step 4: Simplify right side
    100,820.54x = 7,707,819,197.48
  5. Step 5: Solve for x
    x = 7,707,819,197.48/100,820.54
  6. Step 6: Final answer
    x = 76,450.88

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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.