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Finding the Fourth Proportional to 136,544.70, 188,343.75 and 90,603.35

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Solution

The fourth proportional to 136,544.70, 188,343.75 and 90,603.35 is: 124,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,544.70 : 188,343.75 = 90,603.35 : x
  2. Step 2: Convert to fraction form
    136,544.70/188,343.75 = 90,603.35/x
  3. Step 3: Cross multiply
    136,544.70x = 188,343.75 × 90,603.35
  4. Step 4: Simplify right side
    136,544.70x = 17,064,575,865.33
  5. Step 5: Solve for x
    x = 17,064,575,865.33/136,544.70
  6. Step 6: Final answer
    x = 124,974.28

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