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Finding the Third Proportional to 72,777.75 and 108,717.75

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Solution

The third proportional to 72,777.75 and 108,717.75 is: 162,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,777.75 : 108,717.75 = 108,717.75 : x
  2. Step 2: Convert to fraction form
    72,777.75/108,717.75 = 108,717.75/x
  3. Step 3: Cross multiply
    72,777.75x = 108,717.75 × 108,717.75
  4. Step 4: Simplify right side
    72,777.75x = 11,819,549,165.06
  5. Step 5: Solve for x
    x = 11,819,549,165.06/72,777.75
  6. Step 6: Final answer
    x = 162,406.08

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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.