Home / 143,545.20-215,317.80-43,704.60

Finding the Fourth Proportional to 143,545.20, 215,317.80 and 43,704.60

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Solution

The fourth proportional to 143,545.20, 215,317.80 and 43,704.60 is: 65,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,545.20 : 215,317.80 = 43,704.60 : x
  2. Step 2: Convert to fraction form
    143,545.20/215,317.80 = 43,704.60/x
  3. Step 3: Cross multiply
    143,545.20x = 215,317.80 × 43,704.60
  4. Step 4: Simplify right side
    143,545.20x = 9,410,378,321.88
  5. Step 5: Solve for x
    x = 9,410,378,321.88/143,545.20
  6. Step 6: Final answer
    x = 65,556.90

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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.