Home / 179,147.64-268,500-90,426.44

Finding the Fourth Proportional to 179,147.64, 268,500 and 90,426.44

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Solution

The fourth proportional to 179,147.64, 268,500 and 90,426.44 is: 135,527.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,147.64 : 268,500 = 90,426.44 : x
  2. Step 2: Convert to fraction form
    179,147.64/268,500 = 90,426.44/x
  3. Step 3: Cross multiply
    179,147.64x = 268,500 × 90,426.44
  4. Step 4: Simplify right side
    179,147.64x = 24,279,499,140
  5. Step 5: Solve for x
    x = 24,279,499,140/179,147.64
  6. Step 6: Final answer
    x = 135,527.88

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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.