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Finding the Third Proportional to 89,403 and 125,289

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Solution

The third proportional to 89,403 and 125,289 is: 175,579.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,403 : 125,289 = 125,289 : x
  2. Step 2: Convert to fraction form
    89,403/125,289 = 125,289/x
  3. Step 3: Cross multiply
    89,403x = 125,289 × 125,289
  4. Step 4: Simplify right side
    89,403x = 15,697,333,521
  5. Step 5: Solve for x
    x = 15,697,333,521/89,403
  6. Step 6: Final answer
    x = 175,579.49

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.