Home / 166,022.82-229,115.13-90,571.26

Finding the Fourth Proportional to 166,022.82, 229,115.13 and 90,571.26

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Solution

The fourth proportional to 166,022.82, 229,115.13 and 90,571.26 is: 124,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,022.82 : 229,115.13 = 90,571.26 : x
  2. Step 2: Convert to fraction form
    166,022.82/229,115.13 = 90,571.26/x
  3. Step 3: Cross multiply
    166,022.82x = 229,115.13 × 90,571.26
  4. Step 4: Simplify right side
    166,022.82x = 20,751,246,009.16
  5. Step 5: Solve for x
    x = 20,751,246,009.16/166,022.82
  6. Step 6: Final answer
    x = 124,990.32

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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.