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Finding the Third Proportional to 72,257 and 115,075

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Solution

The third proportional to 72,257 and 115,075 is: 183,266.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,257 : 115,075 = 115,075 : x
  2. Step 2: Convert to fraction form
    72,257/115,075 = 115,075/x
  3. Step 3: Cross multiply
    72,257x = 115,075 × 115,075
  4. Step 4: Simplify right side
    72,257x = 13,242,255,625
  5. Step 5: Solve for x
    x = 13,242,255,625/72,257
  6. Step 6: Final answer
    x = 183,266.06

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.