Home / 166,318.72-229,520.64-90,868.48

Finding the Fourth Proportional to 166,318.72, 229,520.64 and 90,868.48

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Solution

The fourth proportional to 166,318.72, 229,520.64 and 90,868.48 is: 125,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,318.72 : 229,520.64 = 90,868.48 : x
  2. Step 2: Convert to fraction form
    166,318.72/229,520.64 = 90,868.48/x
  3. Step 3: Cross multiply
    166,318.72x = 229,520.64 × 90,868.48
  4. Step 4: Simplify right side
    166,318.72x = 20,856,191,685.43
  5. Step 5: Solve for x
    x = 20,856,191,685.43/166,318.72
  6. Step 6: Final answer
    x = 125,398.94

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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.