Home / 105,933.56-146,283.24-79,029.36

Finding the Fourth Proportional to 105,933.56, 146,283.24 and 79,029.36

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Solution

The fourth proportional to 105,933.56, 146,283.24 and 79,029.36 is: 109,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,933.56 : 146,283.24 = 79,029.36 : x
  2. Step 2: Convert to fraction form
    105,933.56/146,283.24 = 79,029.36/x
  3. Step 3: Cross multiply
    105,933.56x = 146,283.24 × 79,029.36
  4. Step 4: Simplify right side
    105,933.56x = 11,560,670,835.93
  5. Step 5: Solve for x
    x = 11,560,670,835.93/105,933.56
  6. Step 6: Final answer
    x = 109,131.34

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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.