Home / 120,310.30-180,490.56-36,067.06

Finding the Fourth Proportional to 120,310.30, 180,490.56 and 36,067.06

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Solution

The fourth proportional to 120,310.30, 180,490.56 and 36,067.06 is: 54,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,310.30 : 180,490.56 = 36,067.06 : x
  2. Step 2: Convert to fraction form
    120,310.30/180,490.56 = 36,067.06/x
  3. Step 3: Cross multiply
    120,310.30x = 180,490.56 × 36,067.06
  4. Step 4: Simplify right side
    120,310.30x = 6,509,763,856.95
  5. Step 5: Solve for x
    x = 6,509,763,856.95/120,310.30
  6. Step 6: Final answer
    x = 54,108.12

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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.