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Finding the Fourth Proportional to 153,150.70, 211,331.78 and 85,156.71

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Solution

The fourth proportional to 153,150.70, 211,331.78 and 85,156.71 is: 117,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,150.70 : 211,331.78 = 85,156.71 : x
  2. Step 2: Convert to fraction form
    153,150.70/211,331.78 = 85,156.71/x
  3. Step 3: Cross multiply
    153,150.70x = 211,331.78 × 85,156.71
  4. Step 4: Simplify right side
    153,150.70x = 17,996,319,103.24
  5. Step 5: Solve for x
    x = 17,996,319,103.24/153,150.70
  6. Step 6: Final answer
    x = 117,507.26

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