Home / 205,844.58-308,724.84-72,729.18

Finding the Fourth Proportional to 205,844.58, 308,724.84 and 72,729.18

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Solution

The fourth proportional to 205,844.58, 308,724.84 and 72,729.18 is: 109,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,844.58 : 308,724.84 = 72,729.18 : x
  2. Step 2: Convert to fraction form
    205,844.58/308,724.84 = 72,729.18/x
  3. Step 3: Cross multiply
    205,844.58x = 308,724.84 × 72,729.18
  4. Step 4: Simplify right side
    205,844.58x = 22,453,304,458.83
  5. Step 5: Solve for x
    x = 22,453,304,458.83/205,844.58
  6. Step 6: Final answer
    x = 109,078.92

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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.