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Finding the Third Proportional to 121,539.38 and 183,986.16

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Solution

The third proportional to 121,539.38 and 183,986.16 is: 278,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,539.38 : 183,986.16 = 183,986.16 : x
  2. Step 2: Convert to fraction form
    121,539.38/183,986.16 = 183,986.16/x
  3. Step 3: Cross multiply
    121,539.38x = 183,986.16 × 183,986.16
  4. Step 4: Simplify right side
    121,539.38x = 33,850,905,691.65
  5. Step 5: Solve for x
    x = 33,850,905,691.65/121,539.38
  6. Step 6: Final answer
    x = 278,518.02

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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.