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Finding the Third Proportional to 87,395.25 and 139,418.25

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Solution

The third proportional to 87,395.25 and 139,418.25 is: 222,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,395.25 : 139,418.25 = 139,418.25 : x
  2. Step 2: Convert to fraction form
    87,395.25/139,418.25 = 139,418.25/x
  3. Step 3: Cross multiply
    87,395.25x = 139,418.25 × 139,418.25
  4. Step 4: Simplify right side
    87,395.25x = 19,437,448,433.06
  5. Step 5: Solve for x
    x = 19,437,448,433.06/87,395.25
  6. Step 6: Final answer
    x = 222,408.52

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.