Home / 99,205.91-136,829.13-68,976.11

Finding the Fourth Proportional to 99,205.91, 136,829.13 and 68,976.11

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Solution

The fourth proportional to 99,205.91, 136,829.13 and 68,976.11 is: 95,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,205.91 : 136,829.13 = 68,976.11 : x
  2. Step 2: Convert to fraction form
    99,205.91/136,829.13 = 68,976.11/x
  3. Step 3: Cross multiply
    99,205.91x = 136,829.13 × 68,976.11
  4. Step 4: Simplify right side
    99,205.91x = 9,437,940,823.82
  5. Step 5: Solve for x
    x = 9,437,940,823.82/99,205.91
  6. Step 6: Final answer
    x = 95,134.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.