Home / 168,575.40-252,863.10-115,431.30

Finding the Fourth Proportional to 168,575.40, 252,863.10 and 115,431.30

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Solution

The fourth proportional to 168,575.40, 252,863.10 and 115,431.30 is: 173,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,575.40 : 252,863.10 = 115,431.30 : x
  2. Step 2: Convert to fraction form
    168,575.40/252,863.10 = 115,431.30/x
  3. Step 3: Cross multiply
    168,575.40x = 252,863.10 × 115,431.30
  4. Step 4: Simplify right side
    168,575.40x = 29,188,316,355.03
  5. Step 5: Solve for x
    x = 29,188,316,355.03/168,575.40
  6. Step 6: Final answer
    x = 173,146.95

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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.