Home / 168,310.41-252,264.81-78,231.42

Finding the Fourth Proportional to 168,310.41, 252,264.81 and 78,231.42

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Solution

The fourth proportional to 168,310.41, 252,264.81 and 78,231.42 is: 117,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,310.41 : 252,264.81 = 78,231.42 : x
  2. Step 2: Convert to fraction form
    168,310.41/252,264.81 = 78,231.42/x
  3. Step 3: Cross multiply
    168,310.41x = 252,264.81 × 78,231.42
  4. Step 4: Simplify right side
    168,310.41x = 19,735,034,302.33
  5. Step 5: Solve for x
    x = 19,735,034,302.33/168,310.41
  6. Step 6: Final answer
    x = 117,253.79

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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.