Home / 120,680.32-166,530.82-66,961.92

Finding the Fourth Proportional to 120,680.32, 166,530.82 and 66,961.92

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Solution

The fourth proportional to 120,680.32, 166,530.82 and 66,961.92 is: 92,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,680.32 : 166,530.82 = 66,961.92 : x
  2. Step 2: Convert to fraction form
    120,680.32/166,530.82 = 66,961.92/x
  3. Step 3: Cross multiply
    120,680.32x = 166,530.82 × 66,961.92
  4. Step 4: Simplify right side
    120,680.32x = 11,151,223,446.37
  5. Step 5: Solve for x
    x = 11,151,223,446.37/120,680.32
  6. Step 6: Final answer
    x = 92,403.00

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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.