Home / 115,197.26-159,033.89-80,847.69

Finding the Fourth Proportional to 115,197.26, 159,033.89 and 80,847.69

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Solution

The fourth proportional to 115,197.26, 159,033.89 and 80,847.69 is: 111,613.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,197.26 : 159,033.89 = 80,847.69 : x
  2. Step 2: Convert to fraction form
    115,197.26/159,033.89 = 80,847.69/x
  3. Step 3: Cross multiply
    115,197.26x = 159,033.89 × 80,847.69
  4. Step 4: Simplify right side
    115,197.26x = 12,857,522,638.21
  5. Step 5: Solve for x
    x = 12,857,522,638.21/115,197.26
  6. Step 6: Final answer
    x = 111,613.09

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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.