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Finding the Third Proportional to 72,777 and 159,837

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Solution

The third proportional to 72,777 and 159,837 is: 351,043.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,777 : 159,837 = 159,837 : x
  2. Step 2: Convert to fraction form
    72,777/159,837 = 159,837/x
  3. Step 3: Cross multiply
    72,777x = 159,837 × 159,837
  4. Step 4: Simplify right side
    72,777x = 25,547,866,569
  5. Step 5: Solve for x
    x = 25,547,866,569/72,777
  6. Step 6: Final answer
    x = 351,043.14

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.