Home / 155,205.43-213,979.22-101,396.95

Finding the Fourth Proportional to 155,205.43, 213,979.22 and 101,396.95

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Solution

The fourth proportional to 155,205.43, 213,979.22 and 101,396.95 is: 139,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,205.43 : 213,979.22 = 101,396.95 : x
  2. Step 2: Convert to fraction form
    155,205.43/213,979.22 = 101,396.95/x
  3. Step 3: Cross multiply
    155,205.43x = 213,979.22 × 101,396.95
  4. Step 4: Simplify right side
    155,205.43x = 21,696,839,764.39
  5. Step 5: Solve for x
    x = 21,696,839,764.39/155,205.43
  6. Step 6: Final answer
    x = 139,794.33

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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.