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Finding the Fourth Proportional to 211,394.76, 291,743.10 and 115,920.06

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Solution

The fourth proportional to 211,394.76, 291,743.10 and 115,920.06 is: 159,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,394.76 : 291,743.10 = 115,920.06 : x
  2. Step 2: Convert to fraction form
    211,394.76/291,743.10 = 115,920.06/x
  3. Step 3: Cross multiply
    211,394.76x = 291,743.10 × 115,920.06
  4. Step 4: Simplify right side
    211,394.76x = 33,818,877,656.59
  5. Step 5: Solve for x
    x = 33,818,877,656.59/211,394.76
  6. Step 6: Final answer
    x = 159,979.73

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