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Finding the Fourth Proportional to 121,448.54, 180,965.48 and 108,199.10

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Solution

The fourth proportional to 121,448.54, 180,965.48 and 108,199.10 is: 161,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,448.54 : 180,965.48 = 108,199.10 : x
  2. Step 2: Convert to fraction form
    121,448.54/180,965.48 = 108,199.10/x
  3. Step 3: Cross multiply
    121,448.54x = 180,965.48 × 108,199.10
  4. Step 4: Simplify right side
    121,448.54x = 19,580,302,067.07
  5. Step 5: Solve for x
    x = 19,580,302,067.07/121,448.54
  6. Step 6: Final answer
    x = 161,223.03

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.