Home / 135,914.63-187,556.99-75,489.12

Finding the Fourth Proportional to 135,914.63, 187,556.99 and 75,489.12

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Solution

The fourth proportional to 135,914.63, 187,556.99 and 75,489.12 is: 104,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,914.63 : 187,556.99 = 75,489.12 : x
  2. Step 2: Convert to fraction form
    135,914.63/187,556.99 = 75,489.12/x
  3. Step 3: Cross multiply
    135,914.63x = 187,556.99 × 75,489.12
  4. Step 4: Simplify right side
    135,914.63x = 14,158,511,747.50
  5. Step 5: Solve for x
    x = 14,158,511,747.50/135,914.63
  6. Step 6: Final answer
    x = 104,172.10

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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.