Home / 105,955.98-158,786.19-79,629.90

Finding the Fourth Proportional to 105,955.98, 158,786.19 and 79,629.90

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Solution

The fourth proportional to 105,955.98, 158,786.19 and 79,629.90 is: 119,333.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,955.98 : 158,786.19 = 79,629.90 : x
  2. Step 2: Convert to fraction form
    105,955.98/158,786.19 = 79,629.90/x
  3. Step 3: Cross multiply
    105,955.98x = 158,786.19 × 79,629.90
  4. Step 4: Simplify right side
    105,955.98x = 12,644,128,431.08
  5. Step 5: Solve for x
    x = 12,644,128,431.08/105,955.98
  6. Step 6: Final answer
    x = 119,333.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.