Home / 87,137.91-119,467.11-85,563.27

Finding the Fourth Proportional to 87,137.91, 119,467.11 and 85,563.27

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Solution

The fourth proportional to 87,137.91, 119,467.11 and 85,563.27 is: 117,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,137.91 : 119,467.11 = 85,563.27 : x
  2. Step 2: Convert to fraction form
    87,137.91/119,467.11 = 85,563.27/x
  3. Step 3: Cross multiply
    87,137.91x = 119,467.11 × 85,563.27
  4. Step 4: Simplify right side
    87,137.91x = 10,221,996,589.05
  5. Step 5: Solve for x
    x = 10,221,996,589.05/87,137.91
  6. Step 6: Final answer
    x = 117,308.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.