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Finding the Fourth Proportional to 163,130.94, 225,131.04 and 91,515.60

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Solution

The fourth proportional to 163,130.94, 225,131.04 and 91,515.60 is: 126,297.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,130.94 : 225,131.04 = 91,515.60 : x
  2. Step 2: Convert to fraction form
    163,130.94/225,131.04 = 91,515.60/x
  3. Step 3: Cross multiply
    163,130.94x = 225,131.04 × 91,515.60
  4. Step 4: Simplify right side
    163,130.94x = 20,603,002,204.22
  5. Step 5: Solve for x
    x = 20,603,002,204.22/163,130.94
  6. Step 6: Final answer
    x = 126,297.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.