Home / 252,109.25-347,918.06-138,939.29

Finding the Fourth Proportional to 252,109.25, 347,918.06 and 138,939.29

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Solution

The fourth proportional to 252,109.25, 347,918.06 and 138,939.29 is: 191,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,109.25 : 347,918.06 = 138,939.29 : x
  2. Step 2: Convert to fraction form
    252,109.25/347,918.06 = 138,939.29/x
  3. Step 3: Cross multiply
    252,109.25x = 347,918.06 × 138,939.29
  4. Step 4: Simplify right side
    252,109.25x = 48,339,488,234.58
  5. Step 5: Solve for x
    x = 48,339,488,234.58/252,109.25
  6. Step 6: Final answer
    x = 191,740.24

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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.