Home / 120,621.40-180,845.70-50,464.60

Finding the Fourth Proportional to 120,621.40, 180,845.70 and 50,464.60

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Solution

The fourth proportional to 120,621.40, 180,845.70 and 50,464.60 is: 75,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,621.40 : 180,845.70 = 50,464.60 : x
  2. Step 2: Convert to fraction form
    120,621.40/180,845.70 = 50,464.60/x
  3. Step 3: Cross multiply
    120,621.40x = 180,845.70 × 50,464.60
  4. Step 4: Simplify right side
    120,621.40x = 9,126,305,912.22
  5. Step 5: Solve for x
    x = 9,126,305,912.22/120,621.40
  6. Step 6: Final answer
    x = 75,660.75

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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.