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Finding the Third Proportional to 87,483 and 115,915.50

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Solution

The third proportional to 87,483 and 115,915.50 is: 153,588.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,483 : 115,915.50 = 115,915.50 : x
  2. Step 2: Convert to fraction form
    87,483/115,915.50 = 115,915.50/x
  3. Step 3: Cross multiply
    87,483x = 115,915.50 × 115,915.50
  4. Step 4: Simplify right side
    87,483x = 13,436,403,140.25
  5. Step 5: Solve for x
    x = 13,436,403,140.25/87,483
  6. Step 6: Final answer
    x = 153,588.73

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.