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Finding the Fourth Proportional to 137,124.56, 189,233.34 and 80,536.88

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Solution

The fourth proportional to 137,124.56, 189,233.34 and 80,536.88 is: 111,141.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,124.56 : 189,233.34 = 80,536.88 : x
  2. Step 2: Convert to fraction form
    137,124.56/189,233.34 = 80,536.88/x
  3. Step 3: Cross multiply
    137,124.56x = 189,233.34 × 80,536.88
  4. Step 4: Simplify right side
    137,124.56x = 15,240,262,795.58
  5. Step 5: Solve for x
    x = 15,240,262,795.58/137,124.56
  6. Step 6: Final answer
    x = 111,141.74

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