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Finding the Fourth Proportional to 93,390.64, 139,880.04 and 77,196.24

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Solution

The fourth proportional to 93,390.64, 139,880.04 and 77,196.24 is: 115,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,390.64 : 139,880.04 = 77,196.24 : x
  2. Step 2: Convert to fraction form
    93,390.64/139,880.04 = 77,196.24/x
  3. Step 3: Cross multiply
    93,390.64x = 139,880.04 × 77,196.24
  4. Step 4: Simplify right side
    93,390.64x = 10,798,213,139.05
  5. Step 5: Solve for x
    x = 10,798,213,139.05/93,390.64
  6. Step 6: Final answer
    x = 115,624.15

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