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Finding the Third Proportional to 77,757.75 and 105,510.75

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Solution

The third proportional to 77,757.75 and 105,510.75 is: 143,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,757.75 : 105,510.75 = 105,510.75 : x
  2. Step 2: Convert to fraction form
    77,757.75/105,510.75 = 105,510.75/x
  3. Step 3: Cross multiply
    77,757.75x = 105,510.75 × 105,510.75
  4. Step 4: Simplify right side
    77,757.75x = 11,132,518,365.56
  5. Step 5: Solve for x
    x = 11,132,518,365.56/77,757.75
  6. Step 6: Final answer
    x = 143,169.25

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.