Home / 120,091.20-180,146.79-35,845.80

Finding the Fourth Proportional to 120,091.20, 180,146.79 and 35,845.80

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Solution

The fourth proportional to 120,091.20, 180,146.79 and 35,845.80 is: 53,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,091.20 : 180,146.79 = 35,845.80 : x
  2. Step 2: Convert to fraction form
    120,091.20/180,146.79 = 35,845.80/x
  3. Step 3: Cross multiply
    120,091.20x = 180,146.79 × 35,845.80
  4. Step 4: Simplify right side
    120,091.20x = 6,457,505,804.98
  5. Step 5: Solve for x
    x = 6,457,505,804.98/120,091.20
  6. Step 6: Final answer
    x = 53,771.68

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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.