Home / 166,218-229,382.04-90,766.50

Finding the Fourth Proportional to 166,218, 229,382.04 and 90,766.50

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Solution

The fourth proportional to 166,218, 229,382.04 and 90,766.50 is: 125,258.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,218 : 229,382.04 = 90,766.50 : x
  2. Step 2: Convert to fraction form
    166,218/229,382.04 = 90,766.50/x
  3. Step 3: Cross multiply
    166,218x = 229,382.04 × 90,766.50
  4. Step 4: Simplify right side
    166,218x = 20,820,204,933.66
  5. Step 5: Solve for x
    x = 20,820,204,933.66/166,218
  6. Step 6: Final answer
    x = 125,258.43

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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.