Home / 197,997.72-296,865.36-71,621.34

Finding the Fourth Proportional to 197,997.72, 296,865.36 and 71,621.34

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Solution

The fourth proportional to 197,997.72, 296,865.36 and 71,621.34 is: 107,384.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,997.72 : 296,865.36 = 71,621.34 : x
  2. Step 2: Convert to fraction form
    197,997.72/296,865.36 = 71,621.34/x
  3. Step 3: Cross multiply
    197,997.72x = 296,865.36 × 71,621.34
  4. Step 4: Simplify right side
    197,997.72x = 21,261,894,882.78
  5. Step 5: Solve for x
    x = 21,261,894,882.78/197,997.72
  6. Step 6: Final answer
    x = 107,384.54

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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.