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Finding the Third Proportional to 69,903 and 107,203.50

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Solution

The third proportional to 69,903 and 107,203.50 is: 164,407.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903 : 107,203.50 = 107,203.50 : x
  2. Step 2: Convert to fraction form
    69,903/107,203.50 = 107,203.50/x
  3. Step 3: Cross multiply
    69,903x = 107,203.50 × 107,203.50
  4. Step 4: Simplify right side
    69,903x = 11,492,590,412.25
  5. Step 5: Solve for x
    x = 11,492,590,412.25/69,903
  6. Step 6: Final answer
    x = 164,407.69

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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.