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Finding the Fourth Proportional to 153,621.70, 211,980.82 and 85,633.54

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Solution

The fourth proportional to 153,621.70, 211,980.82 and 85,633.54 is: 118,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,621.70 : 211,980.82 = 85,633.54 : x
  2. Step 2: Convert to fraction form
    153,621.70/211,980.82 = 85,633.54/x
  3. Step 3: Cross multiply
    153,621.70x = 211,980.82 × 85,633.54
  4. Step 4: Simplify right side
    153,621.70x = 18,152,668,028.70
  5. Step 5: Solve for x
    x = 18,152,668,028.70/153,621.70
  6. Step 6: Final answer
    x = 118,164.74

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