Home / 456,719.40-685,079.10-141,208.20

Finding the Fourth Proportional to 456,719.40, 685,079.10 and 141,208.20

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Solution

The fourth proportional to 456,719.40, 685,079.10 and 141,208.20 is: 211,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,719.40 : 685,079.10 = 141,208.20 : x
  2. Step 2: Convert to fraction form
    456,719.40/685,079.10 = 141,208.20/x
  3. Step 3: Cross multiply
    456,719.40x = 685,079.10 × 141,208.20
  4. Step 4: Simplify right side
    456,719.40x = 96,738,786,568.62
  5. Step 5: Solve for x
    x = 96,738,786,568.62/456,719.40
  6. Step 6: Final answer
    x = 211,812.30

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