Home / 135,786.41-187,396.43-75,355.95

Finding the Fourth Proportional to 135,786.41, 187,396.43 and 75,355.95

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Solution

The fourth proportional to 135,786.41, 187,396.43 and 75,355.95 is: 103,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,786.41 : 187,396.43 = 75,355.95 : x
  2. Step 2: Convert to fraction form
    135,786.41/187,396.43 = 75,355.95/x
  3. Step 3: Cross multiply
    135,786.41x = 187,396.43 × 75,355.95
  4. Step 4: Simplify right side
    135,786.41x = 14,121,436,009.26
  5. Step 5: Solve for x
    x = 14,121,436,009.26/135,786.41
  6. Step 6: Final answer
    x = 103,997.42

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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.