Home / 104,195.15-143,736.44-65,890.15

Finding the Fourth Proportional to 104,195.15, 143,736.44 and 65,890.15

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Solution

The fourth proportional to 104,195.15, 143,736.44 and 65,890.15 is: 90,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,195.15 : 143,736.44 = 65,890.15 : x
  2. Step 2: Convert to fraction form
    104,195.15/143,736.44 = 65,890.15/x
  3. Step 3: Cross multiply
    104,195.15x = 143,736.44 × 65,890.15
  4. Step 4: Simplify right side
    104,195.15x = 9,470,814,903.27
  5. Step 5: Solve for x
    x = 9,470,814,903.27/104,195.15
  6. Step 6: Final answer
    x = 90,894.97

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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.