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Finding the Third Proportional to 72,354.75 and 108,987.75

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Solution

The third proportional to 72,354.75 and 108,987.75 is: 164,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,354.75 : 108,987.75 = 108,987.75 : x
  2. Step 2: Convert to fraction form
    72,354.75/108,987.75 = 108,987.75/x
  3. Step 3: Cross multiply
    72,354.75x = 108,987.75 × 108,987.75
  4. Step 4: Simplify right side
    72,354.75x = 11,878,329,650.06
  5. Step 5: Solve for x
    x = 11,878,329,650.06/72,354.75
  6. Step 6: Final answer
    x = 164,167.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.