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Finding the Third Proportional to 66,121.52 and 156,062.21

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Solution

The third proportional to 66,121.52 and 156,062.21 is: 368,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.52 : 156,062.21 = 156,062.21 : x
  2. Step 2: Convert to fraction form
    66,121.52/156,062.21 = 156,062.21/x
  3. Step 3: Cross multiply
    66,121.52x = 156,062.21 × 156,062.21
  4. Step 4: Simplify right side
    66,121.52x = 24,355,414,901.94
  5. Step 5: Solve for x
    x = 24,355,414,901.94/66,121.52
  6. Step 6: Final answer
    x = 368,343.22

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.