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Finding the Fourth Proportional to 153,713.07, 212,125.28 and 85,727.79

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Solution

The fourth proportional to 153,713.07, 212,125.28 and 85,727.79 is: 118,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,713.07 : 212,125.28 = 85,727.79 : x
  2. Step 2: Convert to fraction form
    153,713.07/212,125.28 = 85,727.79/x
  3. Step 3: Cross multiply
    153,713.07x = 212,125.28 × 85,727.79
  4. Step 4: Simplify right side
    153,713.07x = 18,185,031,028.89
  5. Step 5: Solve for x
    x = 18,185,031,028.89/153,713.07
  6. Step 6: Final answer
    x = 118,305.04

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