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Finding the Third Proportional to 103,616 and 162,780

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Solution

The third proportional to 103,616 and 162,780 is: 255,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,616 : 162,780 = 162,780 : x
  2. Step 2: Convert to fraction form
    103,616/162,780 = 162,780/x
  3. Step 3: Cross multiply
    103,616x = 162,780 × 162,780
  4. Step 4: Simplify right side
    103,616x = 26,497,328,400
  5. Step 5: Solve for x
    x = 26,497,328,400/103,616
  6. Step 6: Final answer
    x = 255,726.22

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.