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Finding the Third Proportional to 74,085 and 114,745.50

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Solution

The third proportional to 74,085 and 114,745.50 is: 177,721.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085 : 114,745.50 = 114,745.50 : x
  2. Step 2: Convert to fraction form
    74,085/114,745.50 = 114,745.50/x
  3. Step 3: Cross multiply
    74,085x = 114,745.50 × 114,745.50
  4. Step 4: Simplify right side
    74,085x = 13,166,529,770.25
  5. Step 5: Solve for x
    x = 13,166,529,770.25/74,085
  6. Step 6: Final answer
    x = 177,721.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.