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Finding the Fourth Proportional to 156,630.47, 216,150.26 and 85,010.49

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Solution

The fourth proportional to 156,630.47, 216,150.26 and 85,010.49 is: 117,314.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,630.47 : 216,150.26 = 85,010.49 : x
  2. Step 2: Convert to fraction form
    156,630.47/216,150.26 = 85,010.49/x
  3. Step 3: Cross multiply
    156,630.47x = 216,150.26 × 85,010.49
  4. Step 4: Simplify right side
    156,630.47x = 18,375,039,516.23
  5. Step 5: Solve for x
    x = 18,375,039,516.23/156,630.47
  6. Step 6: Final answer
    x = 117,314.59

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