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Finding the Fourth Proportional to 156,888.99, 216,508.49 and 85,269.02

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Solution

The fourth proportional to 156,888.99, 216,508.49 and 85,269.02 is: 117,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,888.99 : 216,508.49 = 85,269.02 : x
  2. Step 2: Convert to fraction form
    156,888.99/216,508.49 = 85,269.02/x
  3. Step 3: Cross multiply
    156,888.99x = 216,508.49 × 85,269.02
  4. Step 4: Simplify right side
    156,888.99x = 18,461,465,255.09
  5. Step 5: Solve for x
    x = 18,461,465,255.09/156,888.99
  6. Step 6: Final answer
    x = 117,672.15

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