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Finding the Fourth Proportional to 172,886.40, 259,329.60 and 102,729.60

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Solution

The fourth proportional to 172,886.40, 259,329.60 and 102,729.60 is: 154,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,886.40 : 259,329.60 = 102,729.60 : x
  2. Step 2: Convert to fraction form
    172,886.40/259,329.60 = 102,729.60/x
  3. Step 3: Cross multiply
    172,886.40x = 259,329.60 × 102,729.60
  4. Step 4: Simplify right side
    172,886.40x = 26,640,826,076.16
  5. Step 5: Solve for x
    x = 26,640,826,076.16/172,886.40
  6. Step 6: Final answer
    x = 154,094.40

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