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Finding the Third Proportional to 71,530 and 105,102

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Solution

The third proportional to 71,530 and 105,102 is: 154,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,530 : 105,102 = 105,102 : x
  2. Step 2: Convert to fraction form
    71,530/105,102 = 105,102/x
  3. Step 3: Cross multiply
    71,530x = 105,102 × 105,102
  4. Step 4: Simplify right side
    71,530x = 11,046,430,404
  5. Step 5: Solve for x
    x = 11,046,430,404/71,530
  6. Step 6: Final answer
    x = 154,430.73

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.