Home / 120,815.61-181,251.77-36,576.42

Finding the Fourth Proportional to 120,815.61, 181,251.77 and 36,576.42

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Solution

The fourth proportional to 120,815.61, 181,251.77 and 36,576.42 is: 54,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,815.61 : 181,251.77 = 36,576.42 : x
  2. Step 2: Convert to fraction form
    120,815.61/181,251.77 = 36,576.42/x
  3. Step 3: Cross multiply
    120,815.61x = 181,251.77 × 36,576.42
  4. Step 4: Simplify right side
    120,815.61x = 6,629,540,682.38
  5. Step 5: Solve for x
    x = 6,629,540,682.38/120,815.61
  6. Step 6: Final answer
    x = 54,873.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.