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Finding the Fourth Proportional to 138,160.32, 206,453.88 and 103,741.70

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Solution

The fourth proportional to 138,160.32, 206,453.88 and 103,741.70 is: 155,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,160.32 : 206,453.88 = 103,741.70 : x
  2. Step 2: Convert to fraction form
    138,160.32/206,453.88 = 103,741.70/x
  3. Step 3: Cross multiply
    138,160.32x = 206,453.88 × 103,741.70
  4. Step 4: Simplify right side
    138,160.32x = 21,417,875,450.53
  5. Step 5: Solve for x
    x = 21,417,875,450.53/138,160.32
  6. Step 6: Final answer
    x = 155,021.91

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