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Finding the Fourth Proportional to 100,654.19, 138,904.55 and 55,334.08

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Solution

The fourth proportional to 100,654.19, 138,904.55 and 55,334.08 is: 76,362.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,654.19 : 138,904.55 = 55,334.08 : x
  2. Step 2: Convert to fraction form
    100,654.19/138,904.55 = 55,334.08/x
  3. Step 3: Cross multiply
    100,654.19x = 138,904.55 × 55,334.08
  4. Step 4: Simplify right side
    100,654.19x = 7,686,155,482.06
  5. Step 5: Solve for x
    x = 7,686,155,482.06/100,654.19
  6. Step 6: Final answer
    x = 76,362.00

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