Home / 203,429.85-280,735.75-117,406.70

Finding the Fourth Proportional to 203,429.85, 280,735.75 and 117,406.70

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Solution

The fourth proportional to 203,429.85, 280,735.75 and 117,406.70 is: 162,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,429.85 : 280,735.75 = 117,406.70 : x
  2. Step 2: Convert to fraction form
    203,429.85/280,735.75 = 117,406.70/x
  3. Step 3: Cross multiply
    203,429.85x = 280,735.75 × 117,406.70
  4. Step 4: Simplify right side
    203,429.85x = 32,960,257,979.53
  5. Step 5: Solve for x
    x = 32,960,257,979.53/203,429.85
  6. Step 6: Final answer
    x = 162,022.72

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1.5x scale

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.