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Finding the Fourth Proportional to 154,434.72, 213,097.24 and 86,448.16

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Solution

The fourth proportional to 154,434.72, 213,097.24 and 86,448.16 is: 119,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,434.72 : 213,097.24 = 86,448.16 : x
  2. Step 2: Convert to fraction form
    154,434.72/213,097.24 = 86,448.16/x
  3. Step 3: Cross multiply
    154,434.72x = 213,097.24 × 86,448.16
  4. Step 4: Simplify right side
    154,434.72x = 18,421,864,299.08
  5. Step 5: Solve for x
    x = 18,421,864,299.08/154,434.72
  6. Step 6: Final answer
    x = 119,285.77

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