Home / 168,014.40-251,632.80-115,137.60

Finding the Fourth Proportional to 168,014.40, 251,632.80 and 115,137.60

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Solution

The fourth proportional to 168,014.40, 251,632.80 and 115,137.60 is: 172,439.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.40 : 251,632.80 = 115,137.60 : x
  2. Step 2: Convert to fraction form
    168,014.40/251,632.80 = 115,137.60/x
  3. Step 3: Cross multiply
    168,014.40x = 251,632.80 × 115,137.60
  4. Step 4: Simplify right side
    168,014.40x = 28,972,396,673.28
  5. Step 5: Solve for x
    x = 28,972,396,673.28/168,014.40
  6. Step 6: Final answer
    x = 172,439.96

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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.