Home / 135,940.26-187,688.27-85,025.07

Finding the Fourth Proportional to 135,940.26, 187,688.27 and 85,025.07

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Solution

The fourth proportional to 135,940.26, 187,688.27 and 85,025.07 is: 117,391.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,940.26 : 187,688.27 = 85,025.07 : x
  2. Step 2: Convert to fraction form
    135,940.26/187,688.27 = 85,025.07/x
  3. Step 3: Cross multiply
    135,940.26x = 187,688.27 × 85,025.07
  4. Step 4: Simplify right side
    135,940.26x = 15,958,208,294.93
  5. Step 5: Solve for x
    x = 15,958,208,294.93/135,940.26
  6. Step 6: Final answer
    x = 117,391.33

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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.