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Finding the Third Proportional to 73,980 and 159,779.25

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Solution

The third proportional to 73,980 and 159,779.25 is: 345,085.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,980 : 159,779.25 = 159,779.25 : x
  2. Step 2: Convert to fraction form
    73,980/159,779.25 = 159,779.25/x
  3. Step 3: Cross multiply
    73,980x = 159,779.25 × 159,779.25
  4. Step 4: Simplify right side
    73,980x = 25,529,408,730.56
  5. Step 5: Solve for x
    x = 25,529,408,730.56/73,980
  6. Step 6: Final answer
    x = 345,085.28

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.