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Finding the Fourth Proportional to 205,075.87, 307,684.58 and 85,197.22

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Solution

The fourth proportional to 205,075.87, 307,684.58 and 85,197.22 is: 127,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,075.87 : 307,684.58 = 85,197.22 : x
  2. Step 2: Convert to fraction form
    205,075.87/307,684.58 = 85,197.22/x
  3. Step 3: Cross multiply
    205,075.87x = 307,684.58 × 85,197.22
  4. Step 4: Simplify right side
    205,075.87x = 26,213,869,657.67
  5. Step 5: Solve for x
    x = 26,213,869,657.67/205,075.87
  6. Step 6: Final answer
    x = 127,825.23

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