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Finding the Fourth Proportional to 168,032.80, 252,049.20 and 123,855.40

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Solution

The fourth proportional to 168,032.80, 252,049.20 and 123,855.40 is: 185,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,032.80 : 252,049.20 = 123,855.40 : x
  2. Step 2: Convert to fraction form
    168,032.80/252,049.20 = 123,855.40/x
  3. Step 3: Cross multiply
    168,032.80x = 252,049.20 × 123,855.40
  4. Step 4: Simplify right side
    168,032.80x = 31,217,654,485.68
  5. Step 5: Solve for x
    x = 31,217,654,485.68/168,032.80
  6. Step 6: Final answer
    x = 185,783.10

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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.