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Finding the Fourth Proportional to 97,133.40, 145,764.90 and 55,013.40

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Solution

The fourth proportional to 97,133.40, 145,764.90 and 55,013.40 is: 82,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,133.40 : 145,764.90 = 55,013.40 : x
  2. Step 2: Convert to fraction form
    97,133.40/145,764.90 = 55,013.40/x
  3. Step 3: Cross multiply
    97,133.40x = 145,764.90 × 55,013.40
  4. Step 4: Simplify right side
    97,133.40x = 8,019,022,749.66
  5. Step 5: Solve for x
    x = 8,019,022,749.66/97,133.40
  6. Step 6: Final answer
    x = 82,556.80

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