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Finding the Fourth Proportional to 179,983.64, 269,770.62 and 79,993.64

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Solution

The fourth proportional to 179,983.64, 269,770.62 and 79,993.64 is: 119,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,983.64 : 269,770.62 = 79,993.64 : x
  2. Step 2: Convert to fraction form
    179,983.64/269,770.62 = 79,993.64/x
  3. Step 3: Cross multiply
    179,983.64x = 269,770.62 × 79,993.64
  4. Step 4: Simplify right side
    179,983.64x = 21,579,933,858.86
  5. Step 5: Solve for x
    x = 21,579,933,858.86/179,983.64
  6. Step 6: Final answer
    x = 119,899.42

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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.