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Finding the Third Proportional to 77,157.56 and 115,735.50

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Solution

The third proportional to 77,157.56 and 115,735.50 is: 173,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,157.56 : 115,735.50 = 115,735.50 : x
  2. Step 2: Convert to fraction form
    77,157.56/115,735.50 = 115,735.50/x
  3. Step 3: Cross multiply
    77,157.56x = 115,735.50 × 115,735.50
  4. Step 4: Simplify right side
    77,157.56x = 13,394,705,960.25
  5. Step 5: Solve for x
    x = 13,394,705,960.25/77,157.56
  6. Step 6: Final answer
    x = 173,601.98

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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.