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Finding the Fourth Proportional to 108,615.13, 162,919.55 and 73,308.65

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Solution

The fourth proportional to 108,615.13, 162,919.55 and 73,308.65 is: 109,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,615.13 : 162,919.55 = 73,308.65 : x
  2. Step 2: Convert to fraction form
    108,615.13/162,919.55 = 73,308.65/x
  3. Step 3: Cross multiply
    108,615.13x = 162,919.55 × 73,308.65
  4. Step 4: Simplify right side
    108,615.13x = 11,943,411,637.78
  5. Step 5: Solve for x
    x = 11,943,411,637.78/108,615.13
  6. Step 6: Final answer
    x = 109,960.85

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