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Finding the Fourth Proportional to 111,929.64, 154,463.04 and 61,628.64

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Solution

The fourth proportional to 111,929.64, 154,463.04 and 61,628.64 is: 85,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,929.64 : 154,463.04 = 61,628.64 : x
  2. Step 2: Convert to fraction form
    111,929.64/154,463.04 = 61,628.64/x
  3. Step 3: Cross multiply
    111,929.64x = 154,463.04 × 61,628.64
  4. Step 4: Simplify right side
    111,929.64x = 9,519,347,085.47
  5. Step 5: Solve for x
    x = 9,519,347,085.47/111,929.64
  6. Step 6: Final answer
    x = 85,047.60

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