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Finding the Fourth Proportional to 153,199.62, 211,412.46 and 85,214.28

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Solution

The fourth proportional to 153,199.62, 211,412.46 and 85,214.28 is: 117,594.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,199.62 : 211,412.46 = 85,214.28 : x
  2. Step 2: Convert to fraction form
    153,199.62/211,412.46 = 85,214.28/x
  3. Step 3: Cross multiply
    153,199.62x = 211,412.46 × 85,214.28
  4. Step 4: Simplify right side
    153,199.62x = 18,015,360,561.93
  5. Step 5: Solve for x
    x = 18,015,360,561.93/153,199.62
  6. Step 6: Final answer
    x = 117,594.03

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