Home / 120,391.95-166,138.86-66,679.23

Finding the Fourth Proportional to 120,391.95, 166,138.86 and 66,679.23

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Solution

The fourth proportional to 120,391.95, 166,138.86 and 66,679.23 is: 92,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,391.95 : 166,138.86 = 66,679.23 : x
  2. Step 2: Convert to fraction form
    120,391.95/166,138.86 = 66,679.23/x
  3. Step 3: Cross multiply
    120,391.95x = 166,138.86 × 66,679.23
  4. Step 4: Simplify right side
    120,391.95x = 11,078,011,257.88
  5. Step 5: Solve for x
    x = 11,078,011,257.88/120,391.95
  6. Step 6: Final answer
    x = 92,016.21

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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.