Home / 112,429.20-168,560.76-68,046.21

Finding the Fourth Proportional to 112,429.20, 168,560.76 and 68,046.21

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Solution

The fourth proportional to 112,429.20, 168,560.76 and 68,046.21 is: 102,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,429.20 : 168,560.76 = 68,046.21 : x
  2. Step 2: Convert to fraction form
    112,429.20/168,560.76 = 68,046.21/x
  3. Step 3: Cross multiply
    112,429.20x = 168,560.76 × 68,046.21
  4. Step 4: Simplify right side
    112,429.20x = 11,469,920,872.72
  5. Step 5: Solve for x
    x = 11,469,920,872.72/112,429.20
  6. Step 6: Final answer
    x = 102,019.06

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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.