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Finding the Third Proportional to 71,968.50 and 157,038.75

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Solution

The third proportional to 71,968.50 and 157,038.75 is: 342,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,968.50 : 157,038.75 = 157,038.75 : x
  2. Step 2: Convert to fraction form
    71,968.50/157,038.75 = 157,038.75/x
  3. Step 3: Cross multiply
    71,968.50x = 157,038.75 × 157,038.75
  4. Step 4: Simplify right side
    71,968.50x = 24,661,169,001.56
  5. Step 5: Solve for x
    x = 24,661,169,001.56/71,968.50
  6. Step 6: Final answer
    x = 342,666.15

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.