Home / 252,109-347,910.42-138,931.75

Finding the Fourth Proportional to 252,109, 347,910.42 and 138,931.75

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Solution

The fourth proportional to 252,109, 347,910.42 and 138,931.75 is: 191,725.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,109 : 347,910.42 = 138,931.75 : x
  2. Step 2: Convert to fraction form
    252,109/347,910.42 = 138,931.75/x
  3. Step 3: Cross multiply
    252,109x = 347,910.42 × 138,931.75
  4. Step 4: Simplify right side
    252,109x = 48,335,803,493.84
  5. Step 5: Solve for x
    x = 48,335,803,493.84/252,109
  6. Step 6: Final answer
    x = 191,725.82

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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.