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Finding the Third Proportional to 76,641 and 114,489.50

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Solution

The third proportional to 76,641 and 114,489.50 is: 171,029.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,641 : 114,489.50 = 114,489.50 : x
  2. Step 2: Convert to fraction form
    76,641/114,489.50 = 114,489.50/x
  3. Step 3: Cross multiply
    76,641x = 114,489.50 × 114,489.50
  4. Step 4: Simplify right side
    76,641x = 13,107,845,610.25
  5. Step 5: Solve for x
    x = 13,107,845,610.25/76,641
  6. Step 6: Final answer
    x = 171,029.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.