Home / 209,212.98-313,642.62-90,795.30

Finding the Fourth Proportional to 209,212.98, 313,642.62 and 90,795.30

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Solution

The fourth proportional to 209,212.98, 313,642.62 and 90,795.30 is: 136,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,212.98 : 313,642.62 = 90,795.30 : x
  2. Step 2: Convert to fraction form
    209,212.98/313,642.62 = 90,795.30/x
  3. Step 3: Cross multiply
    209,212.98x = 313,642.62 × 90,795.30
  4. Step 4: Simplify right side
    209,212.98x = 28,477,275,775.69
  5. Step 5: Solve for x
    x = 28,477,275,775.69/209,212.98
  6. Step 6: Final answer
    x = 136,116.20

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