Home / 166,290.72-229,472.64-90,824.64

Finding the Fourth Proportional to 166,290.72, 229,472.64 and 90,824.64

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Solution

The fourth proportional to 166,290.72, 229,472.64 and 90,824.64 is: 125,333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,290.72 : 229,472.64 = 90,824.64 : x
  2. Step 2: Convert to fraction form
    166,290.72/229,472.64 = 90,824.64/x
  3. Step 3: Cross multiply
    166,290.72x = 229,472.64 × 90,824.64
  4. Step 4: Simplify right side
    166,290.72x = 20,841,769,917.85
  5. Step 5: Solve for x
    x = 20,841,769,917.85/166,290.72
  6. Step 6: Final answer
    x = 125,333.33

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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.