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Finding the Third Proportional to 68,904 and 142,236

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Solution

The third proportional to 68,904 and 142,236 is: 293,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,904 : 142,236 = 142,236 : x
  2. Step 2: Convert to fraction form
    68,904/142,236 = 142,236/x
  3. Step 3: Cross multiply
    68,904x = 142,236 × 142,236
  4. Step 4: Simplify right side
    68,904x = 20,231,079,696
  5. Step 5: Solve for x
    x = 20,231,079,696/68,904
  6. Step 6: Final answer
    x = 293,612.56

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.