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Finding the Fourth Proportional to 213,166.80, 319,865.40 and 94,856.40

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Solution

The fourth proportional to 213,166.80, 319,865.40 and 94,856.40 is: 142,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,166.80 : 319,865.40 = 94,856.40 : x
  2. Step 2: Convert to fraction form
    213,166.80/319,865.40 = 94,856.40/x
  3. Step 3: Cross multiply
    213,166.80x = 319,865.40 × 94,856.40
  4. Step 4: Simplify right side
    213,166.80x = 30,341,280,328.56
  5. Step 5: Solve for x
    x = 30,341,280,328.56/213,166.80
  6. Step 6: Final answer
    x = 142,335.86

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