Home / 120,664.72-166,517.12-66,957.92

Finding the Fourth Proportional to 120,664.72, 166,517.12 and 66,957.92

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Solution

The fourth proportional to 120,664.72, 166,517.12 and 66,957.92 is: 92,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.72 : 166,517.12 = 66,957.92 : x
  2. Step 2: Convert to fraction form
    120,664.72/166,517.12 = 66,957.92/x
  3. Step 3: Cross multiply
    120,664.72x = 166,517.12 × 66,957.92
  4. Step 4: Simplify right side
    120,664.72x = 11,149,639,999.59
  5. Step 5: Solve for x
    x = 11,149,639,999.59/120,664.72
  6. Step 6: Final answer
    x = 92,401.82

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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.