Home / 135,928.89-187,587.18-75,504.09

Finding the Fourth Proportional to 135,928.89, 187,587.18 and 75,504.09

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Solution

The fourth proportional to 135,928.89, 187,587.18 and 75,504.09 is: 104,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,928.89 : 187,587.18 = 75,504.09 : x
  2. Step 2: Convert to fraction form
    135,928.89/187,587.18 = 75,504.09/x
  3. Step 3: Cross multiply
    135,928.89x = 187,587.18 × 75,504.09
  4. Step 4: Simplify right side
    135,928.89x = 14,163,599,321.57
  5. Step 5: Solve for x
    x = 14,163,599,321.57/135,928.89
  6. Step 6: Final answer
    x = 104,198.59

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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.