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Finding the Third Proportional to 77,757 and 112,389.75

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Solution

The third proportional to 77,757 and 112,389.75 is: 162,447.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,757 : 112,389.75 = 112,389.75 : x
  2. Step 2: Convert to fraction form
    77,757/112,389.75 = 112,389.75/x
  3. Step 3: Cross multiply
    77,757x = 112,389.75 × 112,389.75
  4. Step 4: Simplify right side
    77,757x = 12,631,455,905.06
  5. Step 5: Solve for x
    x = 12,631,455,905.06/77,757
  6. Step 6: Final answer
    x = 162,447.83

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.