Home / 213,919.21-295,219.38-123,289.93

Finding the Fourth Proportional to 213,919.21, 295,219.38 and 123,289.93

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Solution

The fourth proportional to 213,919.21, 295,219.38 and 123,289.93 is: 170,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,919.21 : 295,219.38 = 123,289.93 : x
  2. Step 2: Convert to fraction form
    213,919.21/295,219.38 = 123,289.93/x
  3. Step 3: Cross multiply
    213,919.21x = 295,219.38 × 123,289.93
  4. Step 4: Simplify right side
    213,919.21x = 36,397,576,694.84
  5. Step 5: Solve for x
    x = 36,397,576,694.84/213,919.21
  6. Step 6: Final answer
    x = 170,146.37

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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.