Home / 120,436.32-166,192.34-66,723.60

Finding the Fourth Proportional to 120,436.32, 166,192.34 and 66,723.60

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Solution

The fourth proportional to 120,436.32, 166,192.34 and 66,723.60 is: 92,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,436.32 : 166,192.34 = 66,723.60 : x
  2. Step 2: Convert to fraction form
    120,436.32/166,192.34 = 66,723.60/x
  3. Step 3: Cross multiply
    120,436.32x = 166,192.34 × 66,723.60
  4. Step 4: Simplify right side
    120,436.32x = 11,088,951,217.22
  5. Step 5: Solve for x
    x = 11,088,951,217.22/120,436.32
  6. Step 6: Final answer
    x = 92,073.15

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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.