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Finding the Third Proportional to 86,604 and 105,498

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Solution

The third proportional to 86,604 and 105,498 is: 128,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,604 : 105,498 = 105,498 : x
  2. Step 2: Convert to fraction form
    86,604/105,498 = 105,498/x
  3. Step 3: Cross multiply
    86,604x = 105,498 × 105,498
  4. Step 4: Simplify right side
    86,604x = 11,129,828,004
  5. Step 5: Solve for x
    x = 11,129,828,004/86,604
  6. Step 6: Final answer
    x = 128,514.02

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.