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Finding the Third Proportional to 66,920.50 and 98,146.50

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Solution

The third proportional to 66,920.50 and 98,146.50 is: 143,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,920.50 : 98,146.50 = 98,146.50 : x
  2. Step 2: Convert to fraction form
    66,920.50/98,146.50 = 98,146.50/x
  3. Step 3: Cross multiply
    66,920.50x = 98,146.50 × 98,146.50
  4. Step 4: Simplify right side
    66,920.50x = 9,632,735,462.25
  5. Step 5: Solve for x
    x = 9,632,735,462.25/66,920.50
  6. Step 6: Final answer
    x = 143,942.97

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.