Home / 168,548.20-252,986.10-131,511.40

Finding the Fourth Proportional to 168,548.20, 252,986.10 and 131,511.40

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Solution

The fourth proportional to 168,548.20, 252,986.10 and 131,511.40 is: 197,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,548.20 : 252,986.10 = 131,511.40 : x
  2. Step 2: Convert to fraction form
    168,548.20/252,986.10 = 131,511.40/x
  3. Step 3: Cross multiply
    168,548.20x = 252,986.10 × 131,511.40
  4. Step 4: Simplify right side
    168,548.20x = 33,270,556,191.54
  5. Step 5: Solve for x
    x = 33,270,556,191.54/168,548.20
  6. Step 6: Final answer
    x = 197,394.91

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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.