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Finding the Fourth Proportional to 152,205.99, 228,090.53 and 85,505.73

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Solution

The fourth proportional to 152,205.99, 228,090.53 and 85,505.73 is: 128,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,205.99 : 228,090.53 = 85,505.73 : x
  2. Step 2: Convert to fraction form
    152,205.99/228,090.53 = 85,505.73/x
  3. Step 3: Cross multiply
    152,205.99x = 228,090.53 × 85,505.73
  4. Step 4: Simplify right side
    152,205.99x = 19,503,046,632.16
  5. Step 5: Solve for x
    x = 19,503,046,632.16/152,205.99
  6. Step 6: Final answer
    x = 128,135.87

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