Home / 120,860.12-181,243.56-45,940.88

Finding the Fourth Proportional to 120,860.12, 181,243.56 and 45,940.88

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Solution

The fourth proportional to 120,860.12, 181,243.56 and 45,940.88 is: 68,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,860.12 : 181,243.56 = 45,940.88 : x
  2. Step 2: Convert to fraction form
    120,860.12/181,243.56 = 45,940.88/x
  3. Step 3: Cross multiply
    120,860.12x = 181,243.56 × 45,940.88
  4. Step 4: Simplify right side
    120,860.12x = 8,326,488,640.73
  5. Step 5: Solve for x
    x = 8,326,488,640.73/120,860.12
  6. Step 6: Final answer
    x = 68,893.60

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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.