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Finding the Fourth Proportional to 131,398.62, 181,356.48 and 85,998.12

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Solution

The fourth proportional to 131,398.62, 181,356.48 and 85,998.12 is: 118,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,398.62 : 181,356.48 = 85,998.12 : x
  2. Step 2: Convert to fraction form
    131,398.62/181,356.48 = 85,998.12/x
  3. Step 3: Cross multiply
    131,398.62x = 181,356.48 × 85,998.12
  4. Step 4: Simplify right side
    131,398.62x = 15,596,316,329.82
  5. Step 5: Solve for x
    x = 15,596,316,329.82/131,398.62
  6. Step 6: Final answer
    x = 118,694.67

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