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Finding the Fourth Proportional to 101,643.39, 140,281.07 and 61,379.91

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Solution

The fourth proportional to 101,643.39, 140,281.07 and 61,379.91 is: 84,712.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,643.39 : 140,281.07 = 61,379.91 : x
  2. Step 2: Convert to fraction form
    101,643.39/140,281.07 = 61,379.91/x
  3. Step 3: Cross multiply
    101,643.39x = 140,281.07 × 61,379.91
  4. Step 4: Simplify right side
    101,643.39x = 8,610,439,144.40
  5. Step 5: Solve for x
    x = 8,610,439,144.40/101,643.39
  6. Step 6: Final answer
    x = 84,712.24

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