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Finding the Fourth Proportional to 122,725.80, 183,959.10 and 70,021.80

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Solution

The fourth proportional to 122,725.80, 183,959.10 and 70,021.80 is: 104,958.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,725.80 : 183,959.10 = 70,021.80 : x
  2. Step 2: Convert to fraction form
    122,725.80/183,959.10 = 70,021.80/x
  3. Step 3: Cross multiply
    122,725.80x = 183,959.10 × 70,021.80
  4. Step 4: Simplify right side
    122,725.80x = 12,881,147,308.38
  5. Step 5: Solve for x
    x = 12,881,147,308.38/122,725.80
  6. Step 6: Final answer
    x = 104,958.76

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