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Finding the Fourth Proportional to 210,753, 316,129.68 and 86,094

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Solution

The fourth proportional to 210,753, 316,129.68 and 86,094 is: 129,141.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,753 : 316,129.68 = 86,094 : x
  2. Step 2: Convert to fraction form
    210,753/316,129.68 = 86,094/x
  3. Step 3: Cross multiply
    210,753x = 316,129.68 × 86,094
  4. Step 4: Simplify right side
    210,753x = 27,216,868,669.92
  5. Step 5: Solve for x
    x = 27,216,868,669.92/210,753
  6. Step 6: Final answer
    x = 129,141.07

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