Home / 102,678.03-153,858.29-80,135.26

Finding the Fourth Proportional to 102,678.03, 153,858.29 and 80,135.26

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Solution

The fourth proportional to 102,678.03, 153,858.29 and 80,135.26 is: 120,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,678.03 : 153,858.29 = 80,135.26 : x
  2. Step 2: Convert to fraction form
    102,678.03/153,858.29 = 80,135.26/x
  3. Step 3: Cross multiply
    102,678.03x = 153,858.29 × 80,135.26
  4. Step 4: Simplify right side
    102,678.03x = 12,329,473,963.12
  5. Step 5: Solve for x
    x = 12,329,473,963.12/102,678.03
  6. Step 6: Final answer
    x = 120,078.99

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