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Finding the Fourth Proportional to 180,137.21, 270,164.73 and 67,829.27

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Solution

The fourth proportional to 180,137.21, 270,164.73 and 67,829.27 is: 101,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,137.21 : 270,164.73 = 67,829.27 : x
  2. Step 2: Convert to fraction form
    180,137.21/270,164.73 = 67,829.27/x
  3. Step 3: Cross multiply
    180,137.21x = 270,164.73 × 67,829.27
  4. Step 4: Simplify right side
    180,137.21x = 18,325,076,415.65
  5. Step 5: Solve for x
    x = 18,325,076,415.65/180,137.21
  6. Step 6: Final answer
    x = 101,728.43

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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.