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Finding the Fourth Proportional to 156,540.63, 216,026.48 and 84,920.65

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Solution

The fourth proportional to 156,540.63, 216,026.48 and 84,920.65 is: 117,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,540.63 : 216,026.48 = 84,920.65 : x
  2. Step 2: Convert to fraction form
    156,540.63/216,026.48 = 84,920.65/x
  3. Step 3: Cross multiply
    156,540.63x = 216,026.48 × 84,920.65
  4. Step 4: Simplify right side
    156,540.63x = 18,345,109,098.81
  5. Step 5: Solve for x
    x = 18,345,109,098.81/156,540.63
  6. Step 6: Final answer
    x = 117,190.72

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