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Finding the Fourth Proportional to 153,020.02, 211,173.96 and 85,036.72

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Solution

The fourth proportional to 153,020.02, 211,173.96 and 85,036.72 is: 117,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,020.02 : 211,173.96 = 85,036.72 : x
  2. Step 2: Convert to fraction form
    153,020.02/211,173.96 = 85,036.72/x
  3. Step 3: Cross multiply
    153,020.02x = 211,173.96 × 85,036.72
  4. Step 4: Simplify right side
    153,020.02x = 17,957,540,907.81
  5. Step 5: Solve for x
    x = 17,957,540,907.81/153,020.02
  6. Step 6: Final answer
    x = 117,354.19

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