Home / 80,219.06-120,155.60-75,502.94

Finding the Fourth Proportional to 80,219.06, 120,155.60 and 75,502.94

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Solution

The fourth proportional to 80,219.06, 120,155.60 and 75,502.94 is: 113,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,219.06 : 120,155.60 = 75,502.94 : x
  2. Step 2: Convert to fraction form
    80,219.06/120,155.60 = 75,502.94/x
  3. Step 3: Cross multiply
    80,219.06x = 120,155.60 × 75,502.94
  4. Step 4: Simplify right side
    80,219.06x = 9,072,100,529.75
  5. Step 5: Solve for x
    x = 9,072,100,529.75/80,219.06
  6. Step 6: Final answer
    x = 113,091.59

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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.