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Finding the Fourth Proportional to 172,857.92, 238,502.16 and 97,406.40

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Solution

The fourth proportional to 172,857.92, 238,502.16 and 97,406.40 is: 134,397.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,857.92 : 238,502.16 = 97,406.40 : x
  2. Step 2: Convert to fraction form
    172,857.92/238,502.16 = 97,406.40/x
  3. Step 3: Cross multiply
    172,857.92x = 238,502.16 × 97,406.40
  4. Step 4: Simplify right side
    172,857.92x = 23,231,636,797.82
  5. Step 5: Solve for x
    x = 23,231,636,797.82/172,857.92
  6. Step 6: Final answer
    x = 134,397.29

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