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Finding the Third Proportional to 103,419 and 158,135

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Solution

The third proportional to 103,419 and 158,135 is: 241,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,419 : 158,135 = 158,135 : x
  2. Step 2: Convert to fraction form
    103,419/158,135 = 158,135/x
  3. Step 3: Cross multiply
    103,419x = 158,135 × 158,135
  4. Step 4: Simplify right side
    103,419x = 25,006,678,225
  5. Step 5: Solve for x
    x = 25,006,678,225/103,419
  6. Step 6: Final answer
    x = 241,799.65

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.