Home / 166,778.40-230,154.36-90,297.54

Finding the Fourth Proportional to 166,778.40, 230,154.36 and 90,297.54

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Solution

The fourth proportional to 166,778.40, 230,154.36 and 90,297.54 is: 124,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,778.40 : 230,154.36 = 90,297.54 : x
  2. Step 2: Convert to fraction form
    166,778.40/230,154.36 = 90,297.54/x
  3. Step 3: Cross multiply
    166,778.40x = 230,154.36 × 90,297.54
  4. Step 4: Simplify right side
    166,778.40x = 20,782,372,528.27
  5. Step 5: Solve for x
    x = 20,782,372,528.27/166,778.40
  6. Step 6: Final answer
    x = 124,610.70

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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.