Home / 323,531.40-485,124.30-113,176.20

Finding the Fourth Proportional to 323,531.40, 485,124.30 and 113,176.20

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Solution

The fourth proportional to 323,531.40, 485,124.30 and 113,176.20 is: 169,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,531.40 : 485,124.30 = 113,176.20 : x
  2. Step 2: Convert to fraction form
    323,531.40/485,124.30 = 113,176.20/x
  3. Step 3: Cross multiply
    323,531.40x = 485,124.30 × 113,176.20
  4. Step 4: Simplify right side
    323,531.40x = 54,904,524,801.66
  5. Step 5: Solve for x
    x = 54,904,524,801.66/323,531.40
  6. Step 6: Final answer
    x = 169,703.85

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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.