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Finding the Fourth Proportional to 145,860.12, 201,286.95 and 78,792.12

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Solution

The fourth proportional to 145,860.12, 201,286.95 and 78,792.12 is: 108,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,860.12 : 201,286.95 = 78,792.12 : x
  2. Step 2: Convert to fraction form
    145,860.12/201,286.95 = 78,792.12/x
  3. Step 3: Cross multiply
    145,860.12x = 201,286.95 × 78,792.12
  4. Step 4: Simplify right side
    145,860.12x = 15,859,825,518.83
  5. Step 5: Solve for x
    x = 15,859,825,518.83/145,860.12
  6. Step 6: Final answer
    x = 108,733.12

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