Home / 166,286-229,479.72-90,839.36

Finding the Fourth Proportional to 166,286, 229,479.72 and 90,839.36

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Solution

The fourth proportional to 166,286, 229,479.72 and 90,839.36 is: 125,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,286 : 229,479.72 = 90,839.36 : x
  2. Step 2: Convert to fraction form
    166,286/229,479.72 = 90,839.36/x
  3. Step 3: Cross multiply
    166,286x = 229,479.72 × 90,839.36
  4. Step 4: Simplify right side
    166,286x = 20,845,790,897.78
  5. Step 5: Solve for x
    x = 20,845,790,897.78/166,286
  6. Step 6: Final answer
    x = 125,361.07

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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.