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Finding the Fourth Proportional to 212,284.51, 318,164.32 and 107,133.55

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Solution

The fourth proportional to 212,284.51, 318,164.32 and 107,133.55 is: 160,567.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,284.51 : 318,164.32 = 107,133.55 : x
  2. Step 2: Convert to fraction form
    212,284.51/318,164.32 = 107,133.55/x
  3. Step 3: Cross multiply
    212,284.51x = 318,164.32 × 107,133.55
  4. Step 4: Simplify right side
    212,284.51x = 34,086,070,958.45
  5. Step 5: Solve for x
    x = 34,086,070,958.45/212,284.51
  6. Step 6: Final answer
    x = 160,567.87

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