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Finding the Fourth Proportional to 170,138.40, 255,207.60 and 146,518.80

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Solution

The fourth proportional to 170,138.40, 255,207.60 and 146,518.80 is: 219,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,138.40 : 255,207.60 = 146,518.80 : x
  2. Step 2: Convert to fraction form
    170,138.40/255,207.60 = 146,518.80/x
  3. Step 3: Cross multiply
    170,138.40x = 255,207.60 × 146,518.80
  4. Step 4: Simplify right side
    170,138.40x = 37,392,711,302.88
  5. Step 5: Solve for x
    x = 37,392,711,302.88/170,138.40
  6. Step 6: Final answer
    x = 219,778.20

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