Home / 166,320-229,521.60-90,869.04

Finding the Fourth Proportional to 166,320, 229,521.60 and 90,869.04

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Solution

The fourth proportional to 166,320, 229,521.60 and 90,869.04 is: 125,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,320 : 229,521.60 = 90,869.04 : x
  2. Step 2: Convert to fraction form
    166,320/229,521.60 = 90,869.04/x
  3. Step 3: Cross multiply
    166,320x = 229,521.60 × 90,869.04
  4. Step 4: Simplify right side
    166,320x = 20,856,407,451.26
  5. Step 5: Solve for x
    x = 20,856,407,451.26/166,320
  6. Step 6: Final answer
    x = 125,399.28

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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.