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Finding the Third Proportional to 66,492 and 99,786

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Solution

The third proportional to 66,492 and 99,786 is: 149,751.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,492 : 99,786 = 99,786 : x
  2. Step 2: Convert to fraction form
    66,492/99,786 = 99,786/x
  3. Step 3: Cross multiply
    66,492x = 99,786 × 99,786
  4. Step 4: Simplify right side
    66,492x = 9,957,245,796
  5. Step 5: Solve for x
    x = 9,957,245,796/66,492
  6. Step 6: Final answer
    x = 149,751.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.