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Finding the Fourth Proportional to 221,088.54, 305,015.58 and 136,057.98

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Solution

The fourth proportional to 221,088.54, 305,015.58 and 136,057.98 is: 187,706.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,088.54 : 305,015.58 = 136,057.98 : x
  2. Step 2: Convert to fraction form
    221,088.54/305,015.58 = 136,057.98/x
  3. Step 3: Cross multiply
    221,088.54x = 305,015.58 × 136,057.98
  4. Step 4: Simplify right side
    221,088.54x = 41,499,803,683.33
  5. Step 5: Solve for x
    x = 41,499,803,683.33/221,088.54
  6. Step 6: Final answer
    x = 187,706.72

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