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Finding the Fourth Proportional to 221,760.59, 306,030.56 and 121,158.59

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Solution

The fourth proportional to 221,760.59, 306,030.56 and 121,158.59 is: 167,199.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,760.59 : 306,030.56 = 121,158.59 : x
  2. Step 2: Convert to fraction form
    221,760.59/306,030.56 = 121,158.59/x
  3. Step 3: Cross multiply
    221,760.59x = 306,030.56 × 121,158.59
  4. Step 4: Simplify right side
    221,760.59x = 37,078,229,010.56
  5. Step 5: Solve for x
    x = 37,078,229,010.56/221,760.59
  6. Step 6: Final answer
    x = 167,199.37

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