Home / 120,319.22-166,033.40-66,601.04

Finding the Fourth Proportional to 120,319.22, 166,033.40 and 66,601.04

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Solution

The fourth proportional to 120,319.22, 166,033.40 and 66,601.04 is: 91,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,319.22 : 166,033.40 = 66,601.04 : x
  2. Step 2: Convert to fraction form
    120,319.22/166,033.40 = 66,601.04/x
  3. Step 3: Cross multiply
    120,319.22x = 166,033.40 × 66,601.04
  4. Step 4: Simplify right side
    120,319.22x = 11,057,995,951.56
  5. Step 5: Solve for x
    x = 11,057,995,951.56/120,319.22
  6. Step 6: Final answer
    x = 91,905.48

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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.