Home / 198,400.62-273,871.37-138,006.31

Finding the Fourth Proportional to 198,400.62, 273,871.37 and 138,006.31

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Solution

The fourth proportional to 198,400.62, 273,871.37 and 138,006.31 is: 190,503.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,400.62 : 273,871.37 = 138,006.31 : x
  2. Step 2: Convert to fraction form
    198,400.62/273,871.37 = 138,006.31/x
  3. Step 3: Cross multiply
    198,400.62x = 273,871.37 × 138,006.31
  4. Step 4: Simplify right side
    198,400.62x = 37,795,975,621.57
  5. Step 5: Solve for x
    x = 37,795,975,621.57/198,400.62
  6. Step 6: Final answer
    x = 190,503.32

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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.