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Finding the Fourth Proportional to 157,978.83, 218,010.81 and 86,359.14

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Solution

The fourth proportional to 157,978.83, 218,010.81 and 86,359.14 is: 119,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,978.83 : 218,010.81 = 86,359.14 : x
  2. Step 2: Convert to fraction form
    157,978.83/218,010.81 = 86,359.14/x
  3. Step 3: Cross multiply
    157,978.83x = 218,010.81 × 86,359.14
  4. Step 4: Simplify right side
    157,978.83x = 18,827,226,062.30
  5. Step 5: Solve for x
    x = 18,827,226,062.30/157,978.83
  6. Step 6: Final answer
    x = 119,175.63

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