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Finding the Third Proportional to 86,040 and 130,357

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Solution

The third proportional to 86,040 and 130,357 is: 197,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,040 : 130,357 = 130,357 : x
  2. Step 2: Convert to fraction form
    86,040/130,357 = 130,357/x
  3. Step 3: Cross multiply
    86,040x = 130,357 × 130,357
  4. Step 4: Simplify right side
    86,040x = 16,992,947,449
  5. Step 5: Solve for x
    x = 16,992,947,449/86,040
  6. Step 6: Final answer
    x = 197,500.55

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.