Home / 87,516.10-131,241.75-68,832.46

Finding the Fourth Proportional to 87,516.10, 131,241.75 and 68,832.46

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Solution

The fourth proportional to 87,516.10, 131,241.75 and 68,832.46 is: 103,223.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,516.10 : 131,241.75 = 68,832.46 : x
  2. Step 2: Convert to fraction form
    87,516.10/131,241.75 = 68,832.46/x
  3. Step 3: Cross multiply
    87,516.10x = 131,241.75 × 68,832.46
  4. Step 4: Simplify right side
    87,516.10x = 9,033,692,507.21
  5. Step 5: Solve for x
    x = 9,033,692,507.21/87,516.10
  6. Step 6: Final answer
    x = 103,223.21

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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.