Home / 120,934.80-166,821.90-72,523.82

Finding the Fourth Proportional to 120,934.80, 166,821.90 and 72,523.82

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Solution

The fourth proportional to 120,934.80, 166,821.90 and 72,523.82 is: 100,042.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,934.80 : 166,821.90 = 72,523.82 : x
  2. Step 2: Convert to fraction form
    120,934.80/166,821.90 = 72,523.82/x
  3. Step 3: Cross multiply
    120,934.80x = 166,821.90 × 72,523.82
  4. Step 4: Simplify right side
    120,934.80x = 12,098,561,447.66
  5. Step 5: Solve for x
    x = 12,098,561,447.66/120,934.80
  6. Step 6: Final answer
    x = 100,042.02

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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.