Home / 239,022.78-358,530.93-81,361.14

Finding the Fourth Proportional to 239,022.78, 358,530.93 and 81,361.14

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Solution

The fourth proportional to 239,022.78, 358,530.93 and 81,361.14 is: 122,040.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,022.78 : 358,530.93 = 81,361.14 : x
  2. Step 2: Convert to fraction form
    239,022.78/358,530.93 = 81,361.14/x
  3. Step 3: Cross multiply
    239,022.78x = 358,530.93 × 81,361.14
  4. Step 4: Simplify right side
    239,022.78x = 29,170,485,190.06
  5. Step 5: Solve for x
    x = 29,170,485,190.06/239,022.78
  6. Step 6: Final answer
    x = 122,040.61

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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.