Home / 166,789.12-230,166.56-91,337.60

Finding the Fourth Proportional to 166,789.12, 230,166.56 and 91,337.60

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Solution

The fourth proportional to 166,789.12, 230,166.56 and 91,337.60 is: 126,044.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,789.12 : 230,166.56 = 91,337.60 : x
  2. Step 2: Convert to fraction form
    166,789.12/230,166.56 = 91,337.60/x
  3. Step 3: Cross multiply
    166,789.12x = 230,166.56 × 91,337.60
  4. Step 4: Simplify right side
    166,789.12x = 21,022,861,190.66
  5. Step 5: Solve for x
    x = 21,022,861,190.66/166,789.12
  6. Step 6: Final answer
    x = 126,044.56

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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.