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Finding the Third Proportional to 105,078 and 157,246

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Solution

The third proportional to 105,078 and 157,246 is: 235,313.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,078 : 157,246 = 157,246 : x
  2. Step 2: Convert to fraction form
    105,078/157,246 = 157,246/x
  3. Step 3: Cross multiply
    105,078x = 157,246 × 157,246
  4. Step 4: Simplify right side
    105,078x = 24,726,304,516
  5. Step 5: Solve for x
    x = 24,726,304,516/105,078
  6. Step 6: Final answer
    x = 235,313.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.