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Finding the Fourth Proportional to 130,978, 196,483.47 and 51,017.77

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Solution

The fourth proportional to 130,978, 196,483.47 and 51,017.77 is: 76,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,978 : 196,483.47 = 51,017.77 : x
  2. Step 2: Convert to fraction form
    130,978/196,483.47 = 51,017.77/x
  3. Step 3: Cross multiply
    130,978x = 196,483.47 × 51,017.77
  4. Step 4: Simplify right side
    130,978x = 10,024,148,481.26
  5. Step 5: Solve for x
    x = 10,024,148,481.26/130,978
  6. Step 6: Final answer
    x = 76,533.07

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Why These Related Problems?

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