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Finding the Third Proportional to 103,640.63 and 155,430.56

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Solution

The third proportional to 103,640.63 and 155,430.56 is: 233,100.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.63 : 155,430.56 = 155,430.56 : x
  2. Step 2: Convert to fraction form
    103,640.63/155,430.56 = 155,430.56/x
  3. Step 3: Cross multiply
    103,640.63x = 155,430.56 × 155,430.56
  4. Step 4: Simplify right side
    103,640.63x = 24,158,659,759.07
  5. Step 5: Solve for x
    x = 24,158,659,759.07/103,640.63
  6. Step 6: Final answer
    x = 233,100.29

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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.