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Finding the Fourth Proportional to 114,761.69, 172,170.21 and 39,870.94

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Solution

The fourth proportional to 114,761.69, 172,170.21 and 39,870.94 is: 59,816.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,761.69 : 172,170.21 = 39,870.94 : x
  2. Step 2: Convert to fraction form
    114,761.69/172,170.21 = 39,870.94/x
  3. Step 3: Cross multiply
    114,761.69x = 172,170.21 × 39,870.94
  4. Step 4: Simplify right side
    114,761.69x = 6,864,587,831.79
  5. Step 5: Solve for x
    x = 6,864,587,831.79/114,761.69
  6. Step 6: Final answer
    x = 59,816.02

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