Home / 143,467.20-215,200.80-43,626.60

Finding the Fourth Proportional to 143,467.20, 215,200.80 and 43,626.60

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Solution

The fourth proportional to 143,467.20, 215,200.80 and 43,626.60 is: 65,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,467.20 : 215,200.80 = 43,626.60 : x
  2. Step 2: Convert to fraction form
    143,467.20/215,200.80 = 43,626.60/x
  3. Step 3: Cross multiply
    143,467.20x = 215,200.80 × 43,626.60
  4. Step 4: Simplify right side
    143,467.20x = 9,388,479,221.28
  5. Step 5: Solve for x
    x = 9,388,479,221.28/143,467.20
  6. Step 6: Final answer
    x = 65,439.90

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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.