Home / 104,212.20-143,812.97-56,465.54

Finding the Fourth Proportional to 104,212.20, 143,812.97 and 56,465.54

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Solution

The fourth proportional to 104,212.20, 143,812.97 and 56,465.54 is: 77,922.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,212.20 : 143,812.97 = 56,465.54 : x
  2. Step 2: Convert to fraction form
    104,212.20/143,812.97 = 56,465.54/x
  3. Step 3: Cross multiply
    104,212.20x = 143,812.97 × 56,465.54
  4. Step 4: Simplify right side
    104,212.20x = 8,120,476,008.66
  5. Step 5: Solve for x
    x = 8,120,476,008.66/104,212.20
  6. Step 6: Final answer
    x = 77,922.51

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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.