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Finding the Fourth Proportional to 157,390.67, 217,192.37 and 89,407.44

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Solution

The fourth proportional to 157,390.67, 217,192.37 and 89,407.44 is: 123,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,390.67 : 217,192.37 = 89,407.44 : x
  2. Step 2: Convert to fraction form
    157,390.67/217,192.37 = 89,407.44/x
  3. Step 3: Cross multiply
    157,390.67x = 217,192.37 × 89,407.44
  4. Step 4: Simplify right side
    157,390.67x = 19,418,613,342.20
  5. Step 5: Solve for x
    x = 19,418,613,342.20/157,390.67
  6. Step 6: Final answer
    x = 123,378.43

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