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Finding the Fourth Proportional to 93,145.34, 128,255.93 and 70,208.50

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Solution

The fourth proportional to 93,145.34, 128,255.93 and 70,208.50 is: 96,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,145.34 : 128,255.93 = 70,208.50 : x
  2. Step 2: Convert to fraction form
    93,145.34/128,255.93 = 70,208.50/x
  3. Step 3: Cross multiply
    93,145.34x = 128,255.93 × 70,208.50
  4. Step 4: Simplify right side
    93,145.34x = 9,004,655,789.72
  5. Step 5: Solve for x
    x = 9,004,655,789.72/93,145.34
  6. Step 6: Final answer
    x = 96,673.17

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