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Finding the Third Proportional to 78,817 and 119,043

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Solution

The third proportional to 78,817 and 119,043 is: 179,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,817 : 119,043 = 119,043 : x
  2. Step 2: Convert to fraction form
    78,817/119,043 = 119,043/x
  3. Step 3: Cross multiply
    78,817x = 119,043 × 119,043
  4. Step 4: Simplify right side
    78,817x = 14,171,235,849
  5. Step 5: Solve for x
    x = 14,171,235,849/78,817
  6. Step 6: Final answer
    x = 179,799.23

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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.