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Finding the Fourth Proportional to 107,707.41, 161,320.54 and 78,057.16

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Solution

The fourth proportional to 107,707.41, 161,320.54 and 78,057.16 is: 116,911.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,707.41 : 161,320.54 = 78,057.16 : x
  2. Step 2: Convert to fraction form
    107,707.41/161,320.54 = 78,057.16/x
  3. Step 3: Cross multiply
    107,707.41x = 161,320.54 × 78,057.16
  4. Step 4: Simplify right side
    107,707.41x = 12,592,223,202.07
  5. Step 5: Solve for x
    x = 12,592,223,202.07/107,707.41
  6. Step 6: Final answer
    x = 116,911.39

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