Home / 135,817.55-187,408.24-75,388.64

Finding the Fourth Proportional to 135,817.55, 187,408.24 and 75,388.64

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Solution

The fourth proportional to 135,817.55, 187,408.24 and 75,388.64 is: 104,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,817.55 : 187,408.24 = 75,388.64 : x
  2. Step 2: Convert to fraction form
    135,817.55/187,408.24 = 75,388.64/x
  3. Step 3: Cross multiply
    135,817.55x = 187,408.24 × 75,388.64
  4. Step 4: Simplify right side
    135,817.55x = 14,128,452,618.44
  5. Step 5: Solve for x
    x = 14,128,452,618.44/135,817.55
  6. Step 6: Final answer
    x = 104,025.24

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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.