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Finding the Fourth Proportional to 168,771.79, 252,936.25 and 124,189.80

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Solution

The fourth proportional to 168,771.79, 252,936.25 and 124,189.80 is: 186,121.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,771.79 : 252,936.25 = 124,189.80 : x
  2. Step 2: Convert to fraction form
    168,771.79/252,936.25 = 124,189.80/x
  3. Step 3: Cross multiply
    168,771.79x = 252,936.25 × 124,189.80
  4. Step 4: Simplify right side
    168,771.79x = 31,412,102,300.25
  5. Step 5: Solve for x
    x = 31,412,102,300.25/168,771.79
  6. Step 6: Final answer
    x = 186,121.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.