Home / 219,786.95-303,219.27-138,067.18

Finding the Fourth Proportional to 219,786.95, 303,219.27 and 138,067.18

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Solution

The fourth proportional to 219,786.95, 303,219.27 and 138,067.18 is: 190,478.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,786.95 : 303,219.27 = 138,067.18 : x
  2. Step 2: Convert to fraction form
    219,786.95/303,219.27 = 138,067.18/x
  3. Step 3: Cross multiply
    219,786.95x = 303,219.27 × 138,067.18
  4. Step 4: Simplify right side
    219,786.95x = 41,864,628,772.51
  5. Step 5: Solve for x
    x = 41,864,628,772.51/219,786.95
  6. Step 6: Final answer
    x = 190,478.23

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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.