Home / 131,408.20-181,334.82-74,819.08

Finding the Fourth Proportional to 131,408.20, 181,334.82 and 74,819.08

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Solution

The fourth proportional to 131,408.20, 181,334.82 and 74,819.08 is: 103,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,408.20 : 181,334.82 = 74,819.08 : x
  2. Step 2: Convert to fraction form
    131,408.20/181,334.82 = 74,819.08/x
  3. Step 3: Cross multiply
    131,408.20x = 181,334.82 × 74,819.08
  4. Step 4: Simplify right side
    131,408.20x = 13,567,304,404.37
  5. Step 5: Solve for x
    x = 13,567,304,404.37/131,408.20
  6. Step 6: Final answer
    x = 103,245.49

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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.