Home / 203,195.20-280,382.81-117,157.41

Finding the Fourth Proportional to 203,195.20, 280,382.81 and 117,157.41

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Solution

The fourth proportional to 203,195.20, 280,382.81 and 117,157.41 is: 161,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,195.20 : 280,382.81 = 117,157.41 : x
  2. Step 2: Convert to fraction form
    203,195.20/280,382.81 = 117,157.41/x
  3. Step 3: Cross multiply
    203,195.20x = 280,382.81 × 117,157.41
  4. Step 4: Simplify right side
    203,195.20x = 32,848,922,426.21
  5. Step 5: Solve for x
    x = 32,848,922,426.21/203,195.20
  6. Step 6: Final answer
    x = 161,661.90

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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.