Home / 221,076.42-331,679.22-71,313.38

Finding the Fourth Proportional to 221,076.42, 331,679.22 and 71,313.38

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Solution

The fourth proportional to 221,076.42, 331,679.22 and 71,313.38 is: 106,990.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,076.42 : 331,679.22 = 71,313.38 : x
  2. Step 2: Convert to fraction form
    221,076.42/331,679.22 = 71,313.38/x
  3. Step 3: Cross multiply
    221,076.42x = 331,679.22 × 71,313.38
  4. Step 4: Simplify right side
    221,076.42x = 23,653,166,253.96
  5. Step 5: Solve for x
    x = 23,653,166,253.96/221,076.42
  6. Step 6: Final answer
    x = 106,990.91

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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.