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Finding the Fourth Proportional to 122,488.80, 183,733.20 and 102,805.80

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Solution

The fourth proportional to 122,488.80, 183,733.20 and 102,805.80 is: 154,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,488.80 : 183,733.20 = 102,805.80 : x
  2. Step 2: Convert to fraction form
    122,488.80/183,733.20 = 102,805.80/x
  3. Step 3: Cross multiply
    122,488.80x = 183,733.20 × 102,805.80
  4. Step 4: Simplify right side
    122,488.80x = 18,888,838,612.56
  5. Step 5: Solve for x
    x = 18,888,838,612.56/122,488.80
  6. Step 6: Final answer
    x = 154,208.70

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