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Finding the Third Proportional to 70,915 and 104,970

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Solution

The third proportional to 70,915 and 104,970 is: 155,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,915 : 104,970 = 104,970 : x
  2. Step 2: Convert to fraction form
    70,915/104,970 = 104,970/x
  3. Step 3: Cross multiply
    70,915x = 104,970 × 104,970
  4. Step 4: Simplify right side
    70,915x = 11,018,700,900
  5. Step 5: Solve for x
    x = 11,018,700,900/70,915
  6. Step 6: Final answer
    x = 155,378.99

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.