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Finding the Fourth Proportional to 137,130.60, 205,711.90 and 43,645.80

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Solution

The fourth proportional to 137,130.60, 205,711.90 and 43,645.80 is: 65,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,130.60 : 205,711.90 = 43,645.80 : x
  2. Step 2: Convert to fraction form
    137,130.60/205,711.90 = 43,645.80/x
  3. Step 3: Cross multiply
    137,130.60x = 205,711.90 × 43,645.80
  4. Step 4: Simplify right side
    137,130.60x = 8,978,460,445.02
  5. Step 5: Solve for x
    x = 8,978,460,445.02/137,130.60
  6. Step 6: Final answer
    x = 65,473.79

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