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Finding the Fourth Proportional to 216,974.55, 325,232.19 and 98,728.93

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Solution

The fourth proportional to 216,974.55, 325,232.19 and 98,728.93 is: 147,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,974.55 : 325,232.19 = 98,728.93 : x
  2. Step 2: Convert to fraction form
    216,974.55/325,232.19 = 98,728.93/x
  3. Step 3: Cross multiply
    216,974.55x = 325,232.19 × 98,728.93
  4. Step 4: Simplify right side
    216,974.55x = 32,109,824,000.45
  5. Step 5: Solve for x
    x = 32,109,824,000.45/216,974.55
  6. Step 6: Final answer
    x = 147,988.90

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