Home / 120,439.46-166,201.72-66,725.32

Finding the Fourth Proportional to 120,439.46, 166,201.72 and 66,725.32

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Solution

The fourth proportional to 120,439.46, 166,201.72 and 66,725.32 is: 92,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,439.46 : 166,201.72 = 66,725.32 : x
  2. Step 2: Convert to fraction form
    120,439.46/166,201.72 = 66,725.32/x
  3. Step 3: Cross multiply
    120,439.46x = 166,201.72 × 66,725.32
  4. Step 4: Simplify right side
    120,439.46x = 11,089,862,951.55
  5. Step 5: Solve for x
    x = 11,089,862,951.55/120,439.46
  6. Step 6: Final answer
    x = 92,078.32

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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.