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Finding the Fourth Proportional to 131,910.80, 197,893.88 and 43,157.44

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Solution

The fourth proportional to 131,910.80, 197,893.88 and 43,157.44 is: 64,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,910.80 : 197,893.88 = 43,157.44 : x
  2. Step 2: Convert to fraction form
    131,910.80/197,893.88 = 43,157.44/x
  3. Step 3: Cross multiply
    131,910.80x = 197,893.88 × 43,157.44
  4. Step 4: Simplify right side
    131,910.80x = 8,540,593,252.47
  5. Step 5: Solve for x
    x = 8,540,593,252.47/131,910.80
  6. Step 6: Final answer
    x = 64,745.22

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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.