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Finding the Fourth Proportional to 93,312.40, 139,968.60 and 82,231.60

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Solution

The fourth proportional to 93,312.40, 139,968.60 and 82,231.60 is: 123,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.40 : 139,968.60 = 82,231.60 : x
  2. Step 2: Convert to fraction form
    93,312.40/139,968.60 = 82,231.60/x
  3. Step 3: Cross multiply
    93,312.40x = 139,968.60 × 82,231.60
  4. Step 4: Simplify right side
    93,312.40x = 11,509,841,927.76
  5. Step 5: Solve for x
    x = 11,509,841,927.76/93,312.40
  6. Step 6: Final answer
    x = 123,347.40

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