Home / 166,771.78-230,145.13-90,290.87

Finding the Fourth Proportional to 166,771.78, 230,145.13 and 90,290.87

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Solution

The fourth proportional to 166,771.78, 230,145.13 and 90,290.87 is: 124,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,771.78 : 230,145.13 = 90,290.87 : x
  2. Step 2: Convert to fraction form
    166,771.78/230,145.13 = 90,290.87/x
  3. Step 3: Cross multiply
    166,771.78x = 230,145.13 × 90,290.87
  4. Step 4: Simplify right side
    166,771.78x = 20,780,004,363.60
  5. Step 5: Solve for x
    x = 20,780,004,363.60/166,771.78
  6. Step 6: Final answer
    x = 124,601.44

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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.