Home / 192,201.12-265,167.27-120,555

Finding the Fourth Proportional to 192,201.12, 265,167.27 and 120,555

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Solution

The fourth proportional to 192,201.12, 265,167.27 and 120,555 is: 166,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,201.12 : 265,167.27 = 120,555 : x
  2. Step 2: Convert to fraction form
    192,201.12/265,167.27 = 120,555/x
  3. Step 3: Cross multiply
    192,201.12x = 265,167.27 × 120,555
  4. Step 4: Simplify right side
    192,201.12x = 31,967,240,234.85
  5. Step 5: Solve for x
    x = 31,967,240,234.85/192,201.12
  6. Step 6: Final answer
    x = 166,321.82

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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.