Home / 120,728.16-166,596.96-67,010.56

Finding the Fourth Proportional to 120,728.16, 166,596.96 and 67,010.56

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Solution

The fourth proportional to 120,728.16, 166,596.96 and 67,010.56 is: 92,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,728.16 : 166,596.96 = 67,010.56 : x
  2. Step 2: Convert to fraction form
    120,728.16/166,596.96 = 67,010.56/x
  3. Step 3: Cross multiply
    120,728.16x = 166,596.96 × 67,010.56
  4. Step 4: Simplify right side
    120,728.16x = 11,163,755,583.90
  5. Step 5: Solve for x
    x = 11,163,755,583.90/120,728.16
  6. Step 6: Final answer
    x = 92,470.19

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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.