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Finding the Third Proportional to 68,584 and 139,076

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Solution

The third proportional to 68,584 and 139,076 is: 282,021.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,584 : 139,076 = 139,076 : x
  2. Step 2: Convert to fraction form
    68,584/139,076 = 139,076/x
  3. Step 3: Cross multiply
    68,584x = 139,076 × 139,076
  4. Step 4: Simplify right side
    68,584x = 19,342,133,776
  5. Step 5: Solve for x
    x = 19,342,133,776/68,584
  6. Step 6: Final answer
    x = 282,021.08

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.