Home / 179,719.20-269,449.20-100,857.60

Finding the Fourth Proportional to 179,719.20, 269,449.20 and 100,857.60

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Solution

The fourth proportional to 179,719.20, 269,449.20 and 100,857.60 is: 151,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,719.20 : 269,449.20 = 100,857.60 : x
  2. Step 2: Convert to fraction form
    179,719.20/269,449.20 = 100,857.60/x
  3. Step 3: Cross multiply
    179,719.20x = 269,449.20 × 100,857.60
  4. Step 4: Simplify right side
    179,719.20x = 27,175,999,633.92
  5. Step 5: Solve for x
    x = 27,175,999,633.92/179,719.20
  6. Step 6: Final answer
    x = 151,213.67

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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.