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Finding the Third Proportional to 68,680 and 98,028

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Solution

The third proportional to 68,680 and 98,028 is: 139,916.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,680 : 98,028 = 98,028 : x
  2. Step 2: Convert to fraction form
    68,680/98,028 = 98,028/x
  3. Step 3: Cross multiply
    68,680x = 98,028 × 98,028
  4. Step 4: Simplify right side
    68,680x = 9,609,488,784
  5. Step 5: Solve for x
    x = 9,609,488,784/68,680
  6. Step 6: Final answer
    x = 139,916.84

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.