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Finding the Fourth Proportional to 100,978.94, 151,421.85 and 29,876.15

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Solution

The fourth proportional to 100,978.94, 151,421.85 and 29,876.15 is: 44,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,978.94 : 151,421.85 = 29,876.15 : x
  2. Step 2: Convert to fraction form
    100,978.94/151,421.85 = 29,876.15/x
  3. Step 3: Cross multiply
    100,978.94x = 151,421.85 × 29,876.15
  4. Step 4: Simplify right side
    100,978.94x = 4,523,902,282.43
  5. Step 5: Solve for x
    x = 4,523,902,282.43/100,978.94
  6. Step 6: Final answer
    x = 44,800.45

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