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Finding the Fourth Proportional to 169,830.80, 254,746.20 and 91,098.80

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Solution

The fourth proportional to 169,830.80, 254,746.20 and 91,098.80 is: 136,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,830.80 : 254,746.20 = 91,098.80 : x
  2. Step 2: Convert to fraction form
    169,830.80/254,746.20 = 91,098.80/x
  3. Step 3: Cross multiply
    169,830.80x = 254,746.20 × 91,098.80
  4. Step 4: Simplify right side
    169,830.80x = 23,207,073,124.56
  5. Step 5: Solve for x
    x = 23,207,073,124.56/169,830.80
  6. Step 6: Final answer
    x = 136,648.20

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