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Finding the Third Proportional to 70,213.50 and 105,212.25

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Solution

The third proportional to 70,213.50 and 105,212.25 is: 157,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,213.50 : 105,212.25 = 105,212.25 : x
  2. Step 2: Convert to fraction form
    70,213.50/105,212.25 = 105,212.25/x
  3. Step 3: Cross multiply
    70,213.50x = 105,212.25 × 105,212.25
  4. Step 4: Simplify right side
    70,213.50x = 11,069,617,550.06
  5. Step 5: Solve for x
    x = 11,069,617,550.06/70,213.50
  6. Step 6: Final answer
    x = 157,656.54

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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.