Home / 190,745.94-263,217.15-119,121.69

Finding the Fourth Proportional to 190,745.94, 263,217.15 and 119,121.69

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Solution

The fourth proportional to 190,745.94, 263,217.15 and 119,121.69 is: 164,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,745.94 : 263,217.15 = 119,121.69 : x
  2. Step 2: Convert to fraction form
    190,745.94/263,217.15 = 119,121.69/x
  3. Step 3: Cross multiply
    190,745.94x = 263,217.15 × 119,121.69
  4. Step 4: Simplify right side
    190,745.94x = 31,354,871,744.98
  5. Step 5: Solve for x
    x = 31,354,871,744.98/190,745.94
  6. Step 6: Final answer
    x = 164,380.28

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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.