Home / 120,604.32-166,431.42-66,888.18

Finding the Fourth Proportional to 120,604.32, 166,431.42 and 66,888.18

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Solution

The fourth proportional to 120,604.32, 166,431.42 and 66,888.18 is: 92,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,604.32 : 166,431.42 = 66,888.18 : x
  2. Step 2: Convert to fraction form
    120,604.32/166,431.42 = 66,888.18/x
  3. Step 3: Cross multiply
    120,604.32x = 166,431.42 × 66,888.18
  4. Step 4: Simplify right side
    120,604.32x = 11,132,294,778.62
  5. Step 5: Solve for x
    x = 11,132,294,778.62/120,604.32
  6. Step 6: Final answer
    x = 92,304.28

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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.