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Finding the Fourth Proportional to 106,907.74, 160,250.88 and 87,989

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Solution

The fourth proportional to 106,907.74, 160,250.88 and 87,989 is: 131,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,907.74 : 160,250.88 = 87,989 : x
  2. Step 2: Convert to fraction form
    106,907.74/160,250.88 = 87,989/x
  3. Step 3: Cross multiply
    106,907.74x = 160,250.88 × 87,989
  4. Step 4: Simplify right side
    106,907.74x = 14,100,314,680.32
  5. Step 5: Solve for x
    x = 14,100,314,680.32/106,907.74
  6. Step 6: Final answer
    x = 131,892.37

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