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Finding the Third Proportional to 64,259.50 and 100,489.50

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Solution

The third proportional to 64,259.50 and 100,489.50 is: 157,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,259.50 : 100,489.50 = 100,489.50 : x
  2. Step 2: Convert to fraction form
    64,259.50/100,489.50 = 100,489.50/x
  3. Step 3: Cross multiply
    64,259.50x = 100,489.50 × 100,489.50
  4. Step 4: Simplify right side
    64,259.50x = 10,098,139,610.25
  5. Step 5: Solve for x
    x = 10,098,139,610.25/64,259.50
  6. Step 6: Final answer
    x = 157,146.25

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.