Home / 120,929.62-181,092.75-76,422.10

Finding the Fourth Proportional to 120,929.62, 181,092.75 and 76,422.10

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Solution

The fourth proportional to 120,929.62, 181,092.75 and 76,422.10 is: 114,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,929.62 : 181,092.75 = 76,422.10 : x
  2. Step 2: Convert to fraction form
    120,929.62/181,092.75 = 76,422.10/x
  3. Step 3: Cross multiply
    120,929.62x = 181,092.75 × 76,422.10
  4. Step 4: Simplify right side
    120,929.62x = 13,839,488,249.78
  5. Step 5: Solve for x
    x = 13,839,488,249.78/120,929.62
  6. Step 6: Final answer
    x = 114,442.50

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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.