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Finding the Fourth Proportional to 156,065.36, 215,368.58 and 84,443.80

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Solution

The fourth proportional to 156,065.36, 215,368.58 and 84,443.80 is: 116,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,065.36 : 215,368.58 = 84,443.80 : x
  2. Step 2: Convert to fraction form
    156,065.36/215,368.58 = 84,443.80/x
  3. Step 3: Cross multiply
    156,065.36x = 215,368.58 × 84,443.80
  4. Step 4: Simplify right side
    156,065.36x = 18,186,541,295.80
  5. Step 5: Solve for x
    x = 18,186,541,295.80/156,065.36
  6. Step 6: Final answer
    x = 116,531.57

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