Home / 120,439.29-166,216.32-66,729.31

Finding the Fourth Proportional to 120,439.29, 166,216.32 and 66,729.31

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Solution

The fourth proportional to 120,439.29, 166,216.32 and 66,729.31 is: 92,092.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,439.29 : 166,216.32 = 66,729.31 : x
  2. Step 2: Convert to fraction form
    120,439.29/166,216.32 = 66,729.31/x
  3. Step 3: Cross multiply
    120,439.29x = 166,216.32 × 66,729.31
  4. Step 4: Simplify right side
    120,439.29x = 11,091,500,344.34
  5. Step 5: Solve for x
    x = 11,091,500,344.34/120,439.29
  6. Step 6: Final answer
    x = 92,092.04

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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.