Home / 193,639.92-290,335.56-75,185.04

Finding the Fourth Proportional to 193,639.92, 290,335.56 and 75,185.04

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Solution

The fourth proportional to 193,639.92, 290,335.56 and 75,185.04 is: 112,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,639.92 : 290,335.56 = 75,185.04 : x
  2. Step 2: Convert to fraction form
    193,639.92/290,335.56 = 75,185.04/x
  3. Step 3: Cross multiply
    193,639.92x = 290,335.56 × 75,185.04
  4. Step 4: Simplify right side
    193,639.92x = 21,828,890,692.02
  5. Step 5: Solve for x
    x = 21,828,890,692.02/193,639.92
  6. Step 6: Final answer
    x = 112,729.29

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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.