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Finding the Third Proportional to 74,353.50 and 115,168.50

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Solution

The third proportional to 74,353.50 and 115,168.50 is: 178,388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,353.50 : 115,168.50 = 115,168.50 : x
  2. Step 2: Convert to fraction form
    74,353.50/115,168.50 = 115,168.50/x
  3. Step 3: Cross multiply
    74,353.50x = 115,168.50 × 115,168.50
  4. Step 4: Simplify right side
    74,353.50x = 13,263,783,392.25
  5. Step 5: Solve for x
    x = 13,263,783,392.25/74,353.50
  6. Step 6: Final answer
    x = 178,388.15

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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.