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Finding the Fourth Proportional to 93,005.40, 139,508.10 and 84,840.60

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Solution

The fourth proportional to 93,005.40, 139,508.10 and 84,840.60 is: 127,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,005.40 : 139,508.10 = 84,840.60 : x
  2. Step 2: Convert to fraction form
    93,005.40/139,508.10 = 84,840.60/x
  3. Step 3: Cross multiply
    93,005.40x = 139,508.10 × 84,840.60
  4. Step 4: Simplify right side
    93,005.40x = 11,835,950,908.86
  5. Step 5: Solve for x
    x = 11,835,950,908.86/93,005.40
  6. Step 6: Final answer
    x = 127,260.90

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