Home / 180,121.72-270,182.21-169,160.75

Finding the Fourth Proportional to 180,121.72, 270,182.21 and 169,160.75

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Solution

The fourth proportional to 180,121.72, 270,182.21 and 169,160.75 is: 253,740.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,121.72 : 270,182.21 = 169,160.75 : x
  2. Step 2: Convert to fraction form
    180,121.72/270,182.21 = 169,160.75/x
  3. Step 3: Cross multiply
    180,121.72x = 270,182.21 × 169,160.75
  4. Step 4: Simplify right side
    180,121.72x = 45,704,224,352.25
  5. Step 5: Solve for x
    x = 45,704,224,352.25/180,121.72
  6. Step 6: Final answer
    x = 253,740.78

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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.