Home / 104,078.07-143,477.55-68,205.83

Finding the Fourth Proportional to 104,078.07, 143,477.55 and 68,205.83

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Solution

The fourth proportional to 104,078.07, 143,477.55 and 68,205.83 is: 94,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,078.07 : 143,477.55 = 68,205.83 : x
  2. Step 2: Convert to fraction form
    104,078.07/143,477.55 = 68,205.83/x
  3. Step 3: Cross multiply
    104,078.07x = 143,477.55 × 68,205.83
  4. Step 4: Simplify right side
    104,078.07x = 9,786,004,666.73
  5. Step 5: Solve for x
    x = 9,786,004,666.73/104,078.07
  6. Step 6: Final answer
    x = 94,025.62

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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.