Home / 190,649.72-263,096.91-105,766.76

Finding the Fourth Proportional to 190,649.72, 263,096.91 and 105,766.76

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Solution

The fourth proportional to 190,649.72, 263,096.91 and 105,766.76 is: 145,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,649.72 : 263,096.91 = 105,766.76 : x
  2. Step 2: Convert to fraction form
    190,649.72/263,096.91 = 105,766.76/x
  3. Step 3: Cross multiply
    190,649.72x = 263,096.91 × 105,766.76
  4. Step 4: Simplify right side
    190,649.72x = 27,826,907,736.71
  5. Step 5: Solve for x
    x = 27,826,907,736.71/190,649.72
  6. Step 6: Final answer
    x = 145,958.29

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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.