Home / 168,016.40-251,635.80-115,139.60

Finding the Fourth Proportional to 168,016.40, 251,635.80 and 115,139.60

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Solution

The fourth proportional to 168,016.40, 251,635.80 and 115,139.60 is: 172,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,016.40 : 251,635.80 = 115,139.60 : x
  2. Step 2: Convert to fraction form
    168,016.40/251,635.80 = 115,139.60/x
  3. Step 3: Cross multiply
    168,016.40x = 251,635.80 × 115,139.60
  4. Step 4: Simplify right side
    168,016.40x = 28,973,245,357.68
  5. Step 5: Solve for x
    x = 28,973,245,357.68/168,016.40
  6. Step 6: Final answer
    x = 172,442.96

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1.5x scale

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.