Finding the Fourth Proportional to 122,102.24, 168,408.44 and 106,968.63
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Solution
The fourth proportional to 122,102.24, 168,408.44 and 106,968.63 is: 147,535.54
Step by Step Solution
- Step 1: Write the proportion equation
122,102.24 : 168,408.44 = 106,968.63 : x - Step 2: Convert to fraction form
122,102.24/168,408.44 = 106,968.63/x - Step 3: Cross multiply
122,102.24x = 168,408.44 × 106,968.63 - Step 4: Simplify right side
122,102.24x = 18,014,420,107.24 - Step 5: Solve for x
x = 18,014,420,107.24/122,102.24 - Step 6: Final answer
x = 147,535.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.