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Finding the Third Proportional to 66,708.56 and 146,539.13

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Solution

The third proportional to 66,708.56 and 146,539.13 is: 321,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,708.56 : 146,539.13 = 146,539.13 : x
  2. Step 2: Convert to fraction form
    66,708.56/146,539.13 = 146,539.13/x
  3. Step 3: Cross multiply
    66,708.56x = 146,539.13 × 146,539.13
  4. Step 4: Simplify right side
    66,708.56x = 21,473,715,155.77
  5. Step 5: Solve for x
    x = 21,473,715,155.77/66,708.56
  6. Step 6: Final answer
    x = 321,903.43

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.