Home / 120,869.42-166,665.33-82,635.20

Finding the Fourth Proportional to 120,869.42, 166,665.33 and 82,635.20

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Solution

The fourth proportional to 120,869.42, 166,665.33 and 82,635.20 is: 113,944.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,869.42 : 166,665.33 = 82,635.20 : x
  2. Step 2: Convert to fraction form
    120,869.42/166,665.33 = 82,635.20/x
  3. Step 3: Cross multiply
    120,869.42x = 166,665.33 × 82,635.20
  4. Step 4: Simplify right side
    120,869.42x = 13,772,422,877.62
  5. Step 5: Solve for x
    x = 13,772,422,877.62/120,869.42
  6. Step 6: Final answer
    x = 113,944.64

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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.