Home / 220,942.40-331,232.16-87,765.44

Finding the Fourth Proportional to 220,942.40, 331,232.16 and 87,765.44

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Solution

The fourth proportional to 220,942.40, 331,232.16 and 87,765.44 is: 131,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,942.40 : 331,232.16 = 87,765.44 : x
  2. Step 2: Convert to fraction form
    220,942.40/331,232.16 = 87,765.44/x
  3. Step 3: Cross multiply
    220,942.40x = 331,232.16 × 87,765.44
  4. Step 4: Simplify right side
    220,942.40x = 29,070,736,264.55
  5. Step 5: Solve for x
    x = 29,070,736,264.55/220,942.40
  6. Step 6: Final answer
    x = 131,576.09

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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.