Home / 87,968.98-132,136.24-71,121.01

Finding the Fourth Proportional to 87,968.98, 132,136.24 and 71,121.01

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Solution

The fourth proportional to 87,968.98, 132,136.24 and 71,121.01 is: 106,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.98 : 132,136.24 = 71,121.01 : x
  2. Step 2: Convert to fraction form
    87,968.98/132,136.24 = 71,121.01/x
  3. Step 3: Cross multiply
    87,968.98x = 132,136.24 × 71,121.01
  4. Step 4: Simplify right side
    87,968.98x = 9,397,662,846.40
  5. Step 5: Solve for x
    x = 9,397,662,846.40/87,968.98
  6. Step 6: Final answer
    x = 106,829.28

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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.