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Finding the Fourth Proportional to 209,294.16, 313,934.18 and 90,965.51

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Solution

The fourth proportional to 209,294.16, 313,934.18 and 90,965.51 is: 136,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,294.16 : 313,934.18 = 90,965.51 : x
  2. Step 2: Convert to fraction form
    209,294.16/313,934.18 = 90,965.51/x
  3. Step 3: Cross multiply
    209,294.16x = 313,934.18 × 90,965.51
  4. Step 4: Simplify right side
    209,294.16x = 28,557,180,765.63
  5. Step 5: Solve for x
    x = 28,557,180,765.63/209,294.16
  6. Step 6: Final answer
    x = 136,445.19

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