Home / 120,568.32-166,382.40-66,853.44

Finding the Fourth Proportional to 120,568.32, 166,382.40 and 66,853.44

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Solution

The fourth proportional to 120,568.32, 166,382.40 and 66,853.44 is: 92,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,568.32 : 166,382.40 = 66,853.44 : x
  2. Step 2: Convert to fraction form
    120,568.32/166,382.40 = 66,853.44/x
  3. Step 3: Cross multiply
    120,568.32x = 166,382.40 × 66,853.44
  4. Step 4: Simplify right side
    120,568.32x = 11,123,235,795.46
  5. Step 5: Solve for x
    x = 11,123,235,795.46/120,568.32
  6. Step 6: Final answer
    x = 92,256.70

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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.