Home / 204,138.47-306,240.56-71,056.55

Finding the Fourth Proportional to 204,138.47, 306,240.56 and 71,056.55

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Solution

The fourth proportional to 204,138.47, 306,240.56 and 71,056.55 is: 106,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,138.47 : 306,240.56 = 71,056.55 : x
  2. Step 2: Convert to fraction form
    204,138.47/306,240.56 = 71,056.55/x
  3. Step 3: Cross multiply
    204,138.47x = 306,240.56 × 71,056.55
  4. Step 4: Simplify right side
    204,138.47x = 21,760,397,308.39
  5. Step 5: Solve for x
    x = 21,760,397,308.39/204,138.47
  6. Step 6: Final answer
    x = 106,596.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.