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Finding the Fourth Proportional to 156,936.76, 216,572.07 and 85,317.10

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Solution

The fourth proportional to 156,936.76, 216,572.07 and 85,317.10 is: 117,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936.76 : 216,572.07 = 85,317.10 : x
  2. Step 2: Convert to fraction form
    156,936.76/216,572.07 = 85,317.10/x
  3. Step 3: Cross multiply
    156,936.76x = 216,572.07 × 85,317.10
  4. Step 4: Simplify right side
    156,936.76x = 18,477,300,953.40
  5. Step 5: Solve for x
    x = 18,477,300,953.40/156,936.76
  6. Step 6: Final answer
    x = 117,737.24

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