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Finding the Third Proportional to 66,417 and 98,685

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Solution

The third proportional to 66,417 and 98,685 is: 146,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,417 : 98,685 = 98,685 : x
  2. Step 2: Convert to fraction form
    66,417/98,685 = 98,685/x
  3. Step 3: Cross multiply
    66,417x = 98,685 × 98,685
  4. Step 4: Simplify right side
    66,417x = 9,738,729,225
  5. Step 5: Solve for x
    x = 9,738,729,225/66,417
  6. Step 6: Final answer
    x = 146,630.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.