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Finding the Third Proportional to 68,169 and 145,815

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Solution

The third proportional to 68,169 and 145,815 is: 311,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,169 : 145,815 = 145,815 : x
  2. Step 2: Convert to fraction form
    68,169/145,815 = 145,815/x
  3. Step 3: Cross multiply
    68,169x = 145,815 × 145,815
  4. Step 4: Simplify right side
    68,169x = 21,262,014,225
  5. Step 5: Solve for x
    x = 21,262,014,225/68,169
  6. Step 6: Final answer
    x = 311,901.51

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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.