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Finding the Third Proportional to 72,907.50 and 104,259

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Solution

The third proportional to 72,907.50 and 104,259 is: 149,092.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,907.50 : 104,259 = 104,259 : x
  2. Step 2: Convert to fraction form
    72,907.50/104,259 = 104,259/x
  3. Step 3: Cross multiply
    72,907.50x = 104,259 × 104,259
  4. Step 4: Simplify right side
    72,907.50x = 10,869,939,081
  5. Step 5: Solve for x
    x = 10,869,939,081/72,907.50
  6. Step 6: Final answer
    x = 149,092.19

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.