Home / 145,982.20-218,971.14-79,406.68

Finding the Fourth Proportional to 145,982.20, 218,971.14 and 79,406.68

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Solution

The fourth proportional to 145,982.20, 218,971.14 and 79,406.68 is: 119,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,982.20 : 218,971.14 = 79,406.68 : x
  2. Step 2: Convert to fraction form
    145,982.20/218,971.14 = 79,406.68/x
  3. Step 3: Cross multiply
    145,982.20x = 218,971.14 × 79,406.68
  4. Step 4: Simplify right side
    145,982.20x = 17,387,771,243.22
  5. Step 5: Solve for x
    x = 17,387,771,243.22/145,982.20
  6. Step 6: Final answer
    x = 119,108.85

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