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Finding the Third Proportional to 72,920.25 and 159,337.13

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Solution

The third proportional to 72,920.25 and 159,337.13 is: 348,165.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,920.25 : 159,337.13 = 159,337.13 : x
  2. Step 2: Convert to fraction form
    72,920.25/159,337.13 = 159,337.13/x
  3. Step 3: Cross multiply
    72,920.25x = 159,337.13 × 159,337.13
  4. Step 4: Simplify right side
    72,920.25x = 25,388,319,403.27
  5. Step 5: Solve for x
    x = 25,388,319,403.27/72,920.25
  6. Step 6: Final answer
    x = 348,165.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.