Home / 198,730.08-274,422.96-135,219.60

Finding the Fourth Proportional to 198,730.08, 274,422.96 and 135,219.60

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Solution

The fourth proportional to 198,730.08, 274,422.96 and 135,219.60 is: 186,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,730.08 : 274,422.96 = 135,219.60 : x
  2. Step 2: Convert to fraction form
    198,730.08/274,422.96 = 135,219.60/x
  3. Step 3: Cross multiply
    198,730.08x = 274,422.96 × 135,219.60
  4. Step 4: Simplify right side
    198,730.08x = 37,107,362,882.02
  5. Step 5: Solve for x
    x = 37,107,362,882.02/198,730.08
  6. Step 6: Final answer
    x = 186,722.43

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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.