Home / 167,631.11-231,331.21-91,150.13

Finding the Fourth Proportional to 167,631.11, 231,331.21 and 91,150.13

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Solution

The fourth proportional to 167,631.11, 231,331.21 and 91,150.13 is: 125,787.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,631.11 : 231,331.21 = 91,150.13 : x
  2. Step 2: Convert to fraction form
    167,631.11/231,331.21 = 91,150.13/x
  3. Step 3: Cross multiply
    167,631.11x = 231,331.21 × 91,150.13
  4. Step 4: Simplify right side
    167,631.11x = 21,085,870,215.01
  5. Step 5: Solve for x
    x = 21,085,870,215.01/167,631.11
  6. Step 6: Final answer
    x = 125,787.33

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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.