Home / 120,832.40-166,742.92-67,120.88

Finding the Fourth Proportional to 120,832.40, 166,742.92 and 67,120.88

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Solution

The fourth proportional to 120,832.40, 166,742.92 and 67,120.88 is: 92,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,832.40 : 166,742.92 = 67,120.88 : x
  2. Step 2: Convert to fraction form
    120,832.40/166,742.92 = 67,120.88/x
  3. Step 3: Cross multiply
    120,832.40x = 166,742.92 × 67,120.88
  4. Step 4: Simplify right side
    120,832.40x = 11,191,931,524.17
  5. Step 5: Solve for x
    x = 11,191,931,524.17/120,832.40
  6. Step 6: Final answer
    x = 92,623.60

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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.