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Finding the Fourth Proportional to 98,978.30, 148,500.03 and 65,828.78

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Solution

The fourth proportional to 98,978.30, 148,500.03 and 65,828.78 is: 98,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,978.30 : 148,500.03 = 65,828.78 : x
  2. Step 2: Convert to fraction form
    98,978.30/148,500.03 = 65,828.78/x
  3. Step 3: Cross multiply
    98,978.30x = 148,500.03 × 65,828.78
  4. Step 4: Simplify right side
    98,978.30x = 9,775,575,804.86
  5. Step 5: Solve for x
    x = 9,775,575,804.86/98,978.30
  6. Step 6: Final answer
    x = 98,764.84

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