Home / 120,304.72-166,016.28-66,589.84

Finding the Fourth Proportional to 120,304.72, 166,016.28 and 66,589.84

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Solution

The fourth proportional to 120,304.72, 166,016.28 and 66,589.84 is: 91,891.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,304.72 : 166,016.28 = 66,589.84 : x
  2. Step 2: Convert to fraction form
    120,304.72/166,016.28 = 66,589.84/x
  3. Step 3: Cross multiply
    120,304.72x = 166,016.28 × 66,589.84
  4. Step 4: Simplify right side
    120,304.72x = 11,054,997,522.60
  5. Step 5: Solve for x
    x = 11,054,997,522.60/120,304.72
  6. Step 6: Final answer
    x = 91,891.64

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1.5x scale

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.