Home / 190,530-263,005.37-142,921.85

Finding the Fourth Proportional to 190,530, 263,005.37 and 142,921.85

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Solution

The fourth proportional to 190,530, 263,005.37 and 142,921.85 is: 197,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,530 : 263,005.37 = 142,921.85 : x
  2. Step 2: Convert to fraction form
    190,530/263,005.37 = 142,921.85/x
  3. Step 3: Cross multiply
    190,530x = 263,005.37 × 142,921.85
  4. Step 4: Simplify right side
    190,530x = 37,589,212,010.70
  5. Step 5: Solve for x
    x = 37,589,212,010.70/190,530
  6. Step 6: Final answer
    x = 197,287.63

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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.