Home / 262,890.72-394,526.16-105,163.20

Finding the Fourth Proportional to 262,890.72, 394,526.16 and 105,163.20

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Solution

The fourth proportional to 262,890.72, 394,526.16 and 105,163.20 is: 157,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,890.72 : 394,526.16 = 105,163.20 : x
  2. Step 2: Convert to fraction form
    262,890.72/394,526.16 = 105,163.20/x
  3. Step 3: Cross multiply
    262,890.72x = 394,526.16 × 105,163.20
  4. Step 4: Simplify right side
    262,890.72x = 41,489,633,469.31
  5. Step 5: Solve for x
    x = 41,489,633,469.31/262,890.72
  6. Step 6: Final answer
    x = 157,820.84

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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.