Home / 135,809.90-187,408.82-75,377.64

Finding the Fourth Proportional to 135,809.90, 187,408.82 and 75,377.64

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Solution

The fourth proportional to 135,809.90, 187,408.82 and 75,377.64 is: 104,016.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,809.90 : 187,408.82 = 75,377.64 : x
  2. Step 2: Convert to fraction form
    135,809.90/187,408.82 = 75,377.64/x
  3. Step 3: Cross multiply
    135,809.90x = 187,408.82 × 75,377.64
  4. Step 4: Simplify right side
    135,809.90x = 14,126,434,566.78
  5. Step 5: Solve for x
    x = 14,126,434,566.78/135,809.90
  6. Step 6: Final answer
    x = 104,016.24

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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.