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Finding the Fourth Proportional to 120,367.22, 166,104.72 and 66,651.08

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Solution

The fourth proportional to 120,367.22, 166,104.72 and 66,651.08 is: 91,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,367.22 : 166,104.72 = 66,651.08 : x
  2. Step 2: Convert to fraction form
    120,367.22/166,104.72 = 66,651.08/x
  3. Step 3: Cross multiply
    120,367.22x = 166,104.72 × 66,651.08
  4. Step 4: Simplify right side
    120,367.22x = 11,071,058,150.57
  5. Step 5: Solve for x
    x = 11,071,058,150.57/120,367.22
  6. Step 6: Final answer
    x = 91,977.36

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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.