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Finding the Fourth Proportional to 252,120.55, 347,921.70 and 137,400.13

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Solution

The fourth proportional to 252,120.55, 347,921.70 and 137,400.13 is: 189,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,120.55 : 347,921.70 = 137,400.13 : x
  2. Step 2: Convert to fraction form
    252,120.55/347,921.70 = 137,400.13/x
  3. Step 3: Cross multiply
    252,120.55x = 347,921.70 × 137,400.13
  4. Step 4: Simplify right side
    252,120.55x = 47,804,486,809.82
  5. Step 5: Solve for x
    x = 47,804,486,809.82/252,120.55
  6. Step 6: Final answer
    x = 189,609.64

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