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Finding the Third Proportional to 75,000 and 115,614

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Solution

The third proportional to 75,000 and 115,614 is: 178,221.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,000 : 115,614 = 115,614 : x
  2. Step 2: Convert to fraction form
    75,000/115,614 = 115,614/x
  3. Step 3: Cross multiply
    75,000x = 115,614 × 115,614
  4. Step 4: Simplify right side
    75,000x = 13,366,596,996
  5. Step 5: Solve for x
    x = 13,366,596,996/75,000
  6. Step 6: Final answer
    x = 178,221.29

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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.