Home / 193,742.38-290,745.81-67,381.36

Finding the Fourth Proportional to 193,742.38, 290,745.81 and 67,381.36

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Solution

The fourth proportional to 193,742.38, 290,745.81 and 67,381.36 is: 101,118.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,742.38 : 290,745.81 = 67,381.36 : x
  2. Step 2: Convert to fraction form
    193,742.38/290,745.81 = 67,381.36/x
  3. Step 3: Cross multiply
    193,742.38x = 290,745.81 × 67,381.36
  4. Step 4: Simplify right side
    193,742.38x = 19,590,848,092.10
  5. Step 5: Solve for x
    x = 19,590,848,092.10/193,742.38
  6. Step 6: Final answer
    x = 101,118.03

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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.