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Finding the Fourth Proportional to 124,792.82, 172,244.69 and 71,109.48

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Solution

The fourth proportional to 124,792.82, 172,244.69 and 71,109.48 is: 98,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,792.82 : 172,244.69 = 71,109.48 : x
  2. Step 2: Convert to fraction form
    124,792.82/172,244.69 = 71,109.48/x
  3. Step 3: Cross multiply
    124,792.82x = 172,244.69 × 71,109.48
  4. Step 4: Simplify right side
    124,792.82x = 12,248,230,338.66
  5. Step 5: Solve for x
    x = 12,248,230,338.66/124,792.82
  6. Step 6: Final answer
    x = 98,148.52

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