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Finding the Third Proportional to 66,870 and 103,875.75

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Solution

The third proportional to 66,870 and 103,875.75 is: 161,360.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870 : 103,875.75 = 103,875.75 : x
  2. Step 2: Convert to fraction form
    66,870/103,875.75 = 103,875.75/x
  3. Step 3: Cross multiply
    66,870x = 103,875.75 × 103,875.75
  4. Step 4: Simplify right side
    66,870x = 10,790,171,438.06
  5. Step 5: Solve for x
    x = 10,790,171,438.06/66,870
  6. Step 6: Final answer
    x = 161,360.42

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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.