Home / 109,538.94-151,152.39-80,873.85

Finding the Fourth Proportional to 109,538.94, 151,152.39 and 80,873.85

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Solution

The fourth proportional to 109,538.94, 151,152.39 and 80,873.85 is: 111,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,538.94 : 151,152.39 = 80,873.85 : x
  2. Step 2: Convert to fraction form
    109,538.94/151,152.39 = 80,873.85/x
  3. Step 3: Cross multiply
    109,538.94x = 151,152.39 × 80,873.85
  4. Step 4: Simplify right side
    109,538.94x = 12,224,275,716.00
  5. Step 5: Solve for x
    x = 12,224,275,716.00/109,538.94
  6. Step 6: Final answer
    x = 111,597.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.