Home / 167,612.20-231,308.76-91,135.64

Finding the Fourth Proportional to 167,612.20, 231,308.76 and 91,135.64

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Solution

The fourth proportional to 167,612.20, 231,308.76 and 91,135.64 is: 125,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,612.20 : 231,308.76 = 91,135.64 : x
  2. Step 2: Convert to fraction form
    167,612.20/231,308.76 = 91,135.64/x
  3. Step 3: Cross multiply
    167,612.20x = 231,308.76 × 91,135.64
  4. Step 4: Simplify right side
    167,612.20x = 21,080,471,880.21
  5. Step 5: Solve for x
    x = 21,080,471,880.21/167,612.20
  6. Step 6: Final answer
    x = 125,769.32

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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.