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Finding the Third Proportional to 70,776 and 107,070

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Solution

The third proportional to 70,776 and 107,070 is: 161,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,776 : 107,070 = 107,070 : x
  2. Step 2: Convert to fraction form
    70,776/107,070 = 107,070/x
  3. Step 3: Cross multiply
    70,776x = 107,070 × 107,070
  4. Step 4: Simplify right side
    70,776x = 11,463,984,900
  5. Step 5: Solve for x
    x = 11,463,984,900/70,776
  6. Step 6: Final answer
    x = 161,975.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.