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Finding the Fourth Proportional to 180,147.81, 270,129.90 and 60,161.58

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Solution

The fourth proportional to 180,147.81, 270,129.90 and 60,161.58 is: 90,211.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,147.81 : 270,129.90 = 60,161.58 : x
  2. Step 2: Convert to fraction form
    180,147.81/270,129.90 = 60,161.58/x
  3. Step 3: Cross multiply
    180,147.81x = 270,129.90 × 60,161.58
  4. Step 4: Simplify right side
    180,147.81x = 16,251,441,589.24
  5. Step 5: Solve for x
    x = 16,251,441,589.24/180,147.81
  6. Step 6: Final answer
    x = 90,211.71

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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.