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Finding the Fourth Proportional to 98,925.78, 136,524.51 and 55,909.25

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Solution

The fourth proportional to 98,925.78, 136,524.51 and 55,909.25 is: 77,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,925.78 : 136,524.51 = 55,909.25 : x
  2. Step 2: Convert to fraction form
    98,925.78/136,524.51 = 55,909.25/x
  3. Step 3: Cross multiply
    98,925.78x = 136,524.51 × 55,909.25
  4. Step 4: Simplify right side
    98,925.78x = 7,632,982,619.41
  5. Step 5: Solve for x
    x = 7,632,982,619.41/98,925.78
  6. Step 6: Final answer
    x = 77,158.68

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