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Finding the Third Proportional to 54,346 and 83,140

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Solution

The third proportional to 54,346 and 83,140 is: 127,189.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,346 : 83,140 = 83,140 : x
  2. Step 2: Convert to fraction form
    54,346/83,140 = 83,140/x
  3. Step 3: Cross multiply
    54,346x = 83,140 × 83,140
  4. Step 4: Simplify right side
    54,346x = 6,912,259,600
  5. Step 5: Solve for x
    x = 6,912,259,600/54,346
  6. Step 6: Final answer
    x = 127,189.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.