Home / 220,912.40-331,187.16-87,735.44

Finding the Fourth Proportional to 220,912.40, 331,187.16 and 87,735.44

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Solution

The fourth proportional to 220,912.40, 331,187.16 and 87,735.44 is: 131,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,912.40 : 331,187.16 = 87,735.44 : x
  2. Step 2: Convert to fraction form
    220,912.40/331,187.16 = 87,735.44/x
  3. Step 3: Cross multiply
    220,912.40x = 331,187.16 × 87,735.44
  4. Step 4: Simplify right side
    220,912.40x = 29,056,851,204.95
  5. Step 5: Solve for x
    x = 29,056,851,204.95/220,912.40
  6. Step 6: Final answer
    x = 131,531.10

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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.