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Finding the Third Proportional to 66,623.50 and 102,508

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Solution

The third proportional to 66,623.50 and 102,508 is: 157,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,623.50 : 102,508 = 102,508 : x
  2. Step 2: Convert to fraction form
    66,623.50/102,508 = 102,508/x
  3. Step 3: Cross multiply
    66,623.50x = 102,508 × 102,508
  4. Step 4: Simplify right side
    66,623.50x = 10,507,890,064
  5. Step 5: Solve for x
    x = 10,507,890,064/66,623.50
  6. Step 6: Final answer
    x = 157,720.47

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.