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Finding the Fourth Proportional to 120,801.78, 181,175.13 and 45,930.24

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Solution

The fourth proportional to 120,801.78, 181,175.13 and 45,930.24 is: 68,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,801.78 : 181,175.13 = 45,930.24 : x
  2. Step 2: Convert to fraction form
    120,801.78/181,175.13 = 45,930.24/x
  3. Step 3: Cross multiply
    120,801.78x = 181,175.13 × 45,930.24
  4. Step 4: Simplify right side
    120,801.78x = 8,321,417,202.93
  5. Step 5: Solve for x
    x = 8,321,417,202.93/120,801.78
  6. Step 6: Final answer
    x = 68,884.89

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1.5x scale

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.