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Finding the Fourth Proportional to 156,913.90, 235,111.65 and 133,585.90

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Solution

The fourth proportional to 156,913.90, 235,111.65 and 133,585.90 is: 200,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,913.90 : 235,111.65 = 133,585.90 : x
  2. Step 2: Convert to fraction form
    156,913.90/235,111.65 = 133,585.90/x
  3. Step 3: Cross multiply
    156,913.90x = 235,111.65 × 133,585.90
  4. Step 4: Simplify right side
    156,913.90x = 31,407,601,365.74
  5. Step 5: Solve for x
    x = 31,407,601,365.74/156,913.90
  6. Step 6: Final answer
    x = 200,158.18

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