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Finding the Third Proportional to 66,393 and 102,802.50

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Solution

The third proportional to 66,393 and 102,802.50 is: 159,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393 : 102,802.50 = 102,802.50 : x
  2. Step 2: Convert to fraction form
    66,393/102,802.50 = 102,802.50/x
  3. Step 3: Cross multiply
    66,393x = 102,802.50 × 102,802.50
  4. Step 4: Simplify right side
    66,393x = 10,568,354,006.25
  5. Step 5: Solve for x
    x = 10,568,354,006.25/66,393
  6. Step 6: Final answer
    x = 159,178.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.