Home / 105,940.35-146,198.75-57,543.22

Finding the Fourth Proportional to 105,940.35, 146,198.75 and 57,543.22

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Solution

The fourth proportional to 105,940.35, 146,198.75 and 57,543.22 is: 79,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,940.35 : 146,198.75 = 57,543.22 : x
  2. Step 2: Convert to fraction form
    105,940.35/146,198.75 = 57,543.22/x
  3. Step 3: Cross multiply
    105,940.35x = 146,198.75 × 57,543.22
  4. Step 4: Simplify right side
    105,940.35x = 8,412,746,103.98
  5. Step 5: Solve for x
    x = 8,412,746,103.98/105,940.35
  6. Step 6: Final answer
    x = 79,410.22

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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.