Home / 205,414.87-308,093.56-70,476.72

Finding the Fourth Proportional to 205,414.87, 308,093.56 and 70,476.72

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Solution

The fourth proportional to 205,414.87, 308,093.56 and 70,476.72 is: 105,705.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,414.87 : 308,093.56 = 70,476.72 : x
  2. Step 2: Convert to fraction form
    205,414.87/308,093.56 = 70,476.72/x
  3. Step 3: Cross multiply
    205,414.87x = 308,093.56 × 70,476.72
  4. Step 4: Simplify right side
    205,414.87x = 21,713,422,230.38
  5. Step 5: Solve for x
    x = 21,713,422,230.38/205,414.87
  6. Step 6: Final answer
    x = 105,705.21

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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.