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Finding the Fourth Proportional to 156,012.27, 215,228.53 and 91,448.77

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Solution

The fourth proportional to 156,012.27, 215,228.53 and 91,448.77 is: 126,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,012.27 : 215,228.53 = 91,448.77 : x
  2. Step 2: Convert to fraction form
    156,012.27/215,228.53 = 91,448.77/x
  3. Step 3: Cross multiply
    156,012.27x = 215,228.53 × 91,448.77
  4. Step 4: Simplify right side
    156,012.27x = 19,682,384,337.41
  5. Step 5: Solve for x
    x = 19,682,384,337.41/156,012.27
  6. Step 6: Final answer
    x = 126,159.21

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