Home / 190,786.19-263,271.76-105,896.57

Finding the Fourth Proportional to 190,786.19, 263,271.76 and 105,896.57

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Solution

The fourth proportional to 190,786.19, 263,271.76 and 105,896.57 is: 146,129.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,786.19 : 263,271.76 = 105,896.57 : x
  2. Step 2: Convert to fraction form
    190,786.19/263,271.76 = 105,896.57/x
  3. Step 3: Cross multiply
    190,786.19x = 263,271.76 × 105,896.57
  4. Step 4: Simplify right side
    190,786.19x = 27,879,575,045.50
  5. Step 5: Solve for x
    x = 27,879,575,045.50/190,786.19
  6. Step 6: Final answer
    x = 146,129.95

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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.