Home / 252,105.75-347,913.23-138,935.79

Finding the Fourth Proportional to 252,105.75, 347,913.23 and 138,935.79

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Solution

The fourth proportional to 252,105.75, 347,913.23 and 138,935.79 is: 191,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,105.75 : 347,913.23 = 138,935.79 : x
  2. Step 2: Convert to fraction form
    252,105.75/347,913.23 = 138,935.79/x
  3. Step 3: Cross multiply
    252,105.75x = 347,913.23 × 138,935.79
  4. Step 4: Simplify right side
    252,105.75x = 48,337,598,766.82
  5. Step 5: Solve for x
    x = 48,337,598,766.82/252,105.75
  6. Step 6: Final answer
    x = 191,735.41

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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.