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Finding the Third Proportional to 67,070.50 and 142,137

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Solution

The third proportional to 67,070.50 and 142,137 is: 301,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,070.50 : 142,137 = 142,137 : x
  2. Step 2: Convert to fraction form
    67,070.50/142,137 = 142,137/x
  3. Step 3: Cross multiply
    67,070.50x = 142,137 × 142,137
  4. Step 4: Simplify right side
    67,070.50x = 20,202,926,769
  5. Step 5: Solve for x
    x = 20,202,926,769/67,070.50
  6. Step 6: Final answer
    x = 301,219.27

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.