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Finding the Third Proportional to 105,103 and 163,191

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Solution

The third proportional to 105,103 and 163,191 is: 253,382.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,103 : 163,191 = 163,191 : x
  2. Step 2: Convert to fraction form
    105,103/163,191 = 163,191/x
  3. Step 3: Cross multiply
    105,103x = 163,191 × 163,191
  4. Step 4: Simplify right side
    105,103x = 26,631,302,481
  5. Step 5: Solve for x
    x = 26,631,302,481/105,103
  6. Step 6: Final answer
    x = 253,382.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.