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Finding the Fourth Proportional to 180,087.57, 270,203.99 and 80,179.47

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Solution

The fourth proportional to 180,087.57, 270,203.99 and 80,179.47 is: 120,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,087.57 : 270,203.99 = 80,179.47 : x
  2. Step 2: Convert to fraction form
    180,087.57/270,203.99 = 80,179.47/x
  3. Step 3: Cross multiply
    180,087.57x = 270,203.99 × 80,179.47
  4. Step 4: Simplify right side
    180,087.57x = 21,664,812,309.19
  5. Step 5: Solve for x
    x = 21,664,812,309.19/180,087.57
  6. Step 6: Final answer
    x = 120,301.54

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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.