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Finding the Fourth Proportional to 166,409.80, 229,645.44 and 90,958.30

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Solution

The fourth proportional to 166,409.80, 229,645.44 and 90,958.30 is: 125,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,409.80 : 229,645.44 = 90,958.30 : x
  2. Step 2: Convert to fraction form
    166,409.80/229,645.44 = 90,958.30/x
  3. Step 3: Cross multiply
    166,409.80x = 229,645.44 × 90,958.30
  4. Step 4: Simplify right side
    166,409.80x = 20,888,158,825.15
  5. Step 5: Solve for x
    x = 20,888,158,825.15/166,409.80
  6. Step 6: Final answer
    x = 125,522.41

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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.