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Finding the Third Proportional to 68,688 and 108,563.63

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Solution

The third proportional to 68,688 and 108,563.63 is: 171,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688 : 108,563.63 = 108,563.63 : x
  2. Step 2: Convert to fraction form
    68,688/108,563.63 = 108,563.63/x
  3. Step 3: Cross multiply
    68,688x = 108,563.63 × 108,563.63
  4. Step 4: Simplify right side
    68,688x = 11,786,060,673.14
  5. Step 5: Solve for x
    x = 11,786,060,673.14/68,688
  6. Step 6: Final answer
    x = 171,588.35

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.