Home / 213,919.71-295,220.07-123,290.43

Finding the Fourth Proportional to 213,919.71, 295,220.07 and 123,290.43

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Solution

The fourth proportional to 213,919.71, 295,220.07 and 123,290.43 is: 170,147.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,919.71 : 295,220.07 = 123,290.43 : x
  2. Step 2: Convert to fraction form
    213,919.71/295,220.07 = 123,290.43/x
  3. Step 3: Cross multiply
    213,919.71x = 295,220.07 × 123,290.43
  4. Step 4: Simplify right side
    213,919.71x = 36,397,809,374.93
  5. Step 5: Solve for x
    x = 36,397,809,374.93/213,919.71
  6. Step 6: Final answer
    x = 170,147.06

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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.