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Finding the Fourth Proportional to 205,302.60, 307,820.70 and 86,941.80

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Solution

The fourth proportional to 205,302.60, 307,820.70 and 86,941.80 is: 130,356.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,302.60 : 307,820.70 = 86,941.80 : x
  2. Step 2: Convert to fraction form
    205,302.60/307,820.70 = 86,941.80/x
  3. Step 3: Cross multiply
    205,302.60x = 307,820.70 × 86,941.80
  4. Step 4: Simplify right side
    205,302.60x = 26,762,485,735.26
  5. Step 5: Solve for x
    x = 26,762,485,735.26/205,302.60
  6. Step 6: Final answer
    x = 130,356.29

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