Home / 120,705.38-166,575.25-66,993.87

Finding the Fourth Proportional to 120,705.38, 166,575.25 and 66,993.87

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Solution

The fourth proportional to 120,705.38, 166,575.25 and 66,993.87 is: 92,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,705.38 : 166,575.25 = 66,993.87 : x
  2. Step 2: Convert to fraction form
    120,705.38/166,575.25 = 66,993.87/x
  3. Step 3: Cross multiply
    120,705.38x = 166,575.25 × 66,993.87
  4. Step 4: Simplify right side
    120,705.38x = 11,159,520,643.72
  5. Step 5: Solve for x
    x = 11,159,520,643.72/120,705.38
  6. Step 6: Final answer
    x = 92,452.55

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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.