Home / 220,942.90-331,232.91-87,765.94

Finding the Fourth Proportional to 220,942.90, 331,232.91 and 87,765.94

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Solution

The fourth proportional to 220,942.90, 331,232.91 and 87,765.94 is: 131,576.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,942.90 : 331,232.91 = 87,765.94 : x
  2. Step 2: Convert to fraction form
    220,942.90/331,232.91 = 87,765.94/x
  3. Step 3: Cross multiply
    220,942.90x = 331,232.91 × 87,765.94
  4. Step 4: Simplify right side
    220,942.90x = 29,070,967,705.09
  5. Step 5: Solve for x
    x = 29,070,967,705.09/220,942.90
  6. Step 6: Final answer
    x = 131,576.84

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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.