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Finding the Third Proportional to 78,903 and 119,173.50

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Solution

The third proportional to 78,903 and 119,173.50 is: 179,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,903 : 119,173.50 = 119,173.50 : x
  2. Step 2: Convert to fraction form
    78,903/119,173.50 = 119,173.50/x
  3. Step 3: Cross multiply
    78,903x = 119,173.50 × 119,173.50
  4. Step 4: Simplify right side
    78,903x = 14,202,323,102.25
  5. Step 5: Solve for x
    x = 14,202,323,102.25/78,903
  6. Step 6: Final answer
    x = 179,997.25

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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.