Home / 101,440.08-139,971.24-65,631.60

Finding the Fourth Proportional to 101,440.08, 139,971.24 and 65,631.60

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Solution

The fourth proportional to 101,440.08, 139,971.24 and 65,631.60 is: 90,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,440.08 : 139,971.24 = 65,631.60 : x
  2. Step 2: Convert to fraction form
    101,440.08/139,971.24 = 65,631.60/x
  3. Step 3: Cross multiply
    101,440.08x = 139,971.24 × 65,631.60
  4. Step 4: Simplify right side
    101,440.08x = 9,186,536,435.18
  5. Step 5: Solve for x
    x = 9,186,536,435.18/101,440.08
  6. Step 6: Final answer
    x = 90,561.21

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