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Finding the Third Proportional to 87,450 and 139,219.50

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Solution

The third proportional to 87,450 and 139,219.50 is: 221,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,450 : 139,219.50 = 139,219.50 : x
  2. Step 2: Convert to fraction form
    87,450/139,219.50 = 139,219.50/x
  3. Step 3: Cross multiply
    87,450x = 139,219.50 × 139,219.50
  4. Step 4: Simplify right side
    87,450x = 19,382,069,180.25
  5. Step 5: Solve for x
    x = 19,382,069,180.25/87,450
  6. Step 6: Final answer
    x = 221,636.01

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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.