Home / 213,541.75-320,505.81-113,786.20

Finding the Fourth Proportional to 213,541.75, 320,505.81 and 113,786.20

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Solution

The fourth proportional to 213,541.75, 320,505.81 and 113,786.20 is: 170,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,541.75 : 320,505.81 = 113,786.20 : x
  2. Step 2: Convert to fraction form
    213,541.75/320,505.81 = 113,786.20/x
  3. Step 3: Cross multiply
    213,541.75x = 320,505.81 × 113,786.20
  4. Step 4: Simplify right side
    213,541.75x = 36,469,138,197.82
  5. Step 5: Solve for x
    x = 36,469,138,197.82/213,541.75
  6. Step 6: Final answer
    x = 170,782.24

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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.