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Finding the Third Proportional to 72,100 and 96,445

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Solution

The third proportional to 72,100 and 96,445 is: 129,010.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,100 : 96,445 = 96,445 : x
  2. Step 2: Convert to fraction form
    72,100/96,445 = 96,445/x
  3. Step 3: Cross multiply
    72,100x = 96,445 × 96,445
  4. Step 4: Simplify right side
    72,100x = 9,301,638,025
  5. Step 5: Solve for x
    x = 9,301,638,025/72,100
  6. Step 6: Final answer
    x = 129,010.24

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.