Home / 166,135.71-229,267.22-90,684.21

Finding the Fourth Proportional to 166,135.71, 229,267.22 and 90,684.21

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Solution

The fourth proportional to 166,135.71, 229,267.22 and 90,684.21 is: 125,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,135.71 : 229,267.22 = 90,684.21 : x
  2. Step 2: Convert to fraction form
    166,135.71/229,267.22 = 90,684.21/x
  3. Step 3: Cross multiply
    166,135.71x = 229,267.22 × 90,684.21
  4. Step 4: Simplify right side
    166,135.71x = 20,790,916,724.60
  5. Step 5: Solve for x
    x = 20,790,916,724.60/166,135.71
  6. Step 6: Final answer
    x = 125,144.18

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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.