Home / 166,135.22-229,266.53-90,683.72

Finding the Fourth Proportional to 166,135.22, 229,266.53 and 90,683.72

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Solution

The fourth proportional to 166,135.22, 229,266.53 and 90,683.72 is: 125,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,135.22 : 229,266.53 = 90,683.72 : x
  2. Step 2: Convert to fraction form
    166,135.22/229,266.53 = 90,683.72/x
  3. Step 3: Cross multiply
    166,135.22x = 229,266.53 × 90,683.72
  4. Step 4: Simplify right side
    166,135.22x = 20,790,740,665.56
  5. Step 5: Solve for x
    x = 20,790,740,665.56/166,135.22
  6. Step 6: Final answer
    x = 125,143.49

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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.