Finding the Fourth Proportional to 120,408.96, 166,166.08 and 69,420.68
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Solution
The fourth proportional to 120,408.96, 166,166.08 and 69,420.68 is: 95,801.53
Step by Step Solution
- Step 1: Write the proportion equation
120,408.96 : 166,166.08 = 69,420.68 : x - Step 2: Convert to fraction form
120,408.96/166,166.08 = 69,420.68/x - Step 3: Cross multiply
120,408.96x = 166,166.08 × 69,420.68 - Step 4: Simplify right side
120,408.96x = 11,535,362,266.53 - Step 5: Solve for x
x = 11,535,362,266.53/120,408.96 - Step 6: Final answer
x = 95,801.53
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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.