Home / 252,108.50-347,917.03-138,938.54

Finding the Fourth Proportional to 252,108.50, 347,917.03 and 138,938.54

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Solution

The fourth proportional to 252,108.50, 347,917.03 and 138,938.54 is: 191,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,108.50 : 347,917.03 = 138,938.54 : x
  2. Step 2: Convert to fraction form
    252,108.50/347,917.03 = 138,938.54/x
  3. Step 3: Cross multiply
    252,108.50x = 347,917.03 × 138,938.54
  4. Step 4: Simplify right side
    252,108.50x = 48,339,083,494.64
  5. Step 5: Solve for x
    x = 48,339,083,494.64/252,108.50
  6. Step 6: Final answer
    x = 191,739.21

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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.