Finding the Fourth Proportional to 133,638.24, 184,269.36 and 85,175.31
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Solution
The fourth proportional to 133,638.24, 184,269.36 and 85,175.31 is: 117,445.42
Step by Step Solution
- Step 1: Write the proportion equation
133,638.24 : 184,269.36 = 85,175.31 : x - Step 2: Convert to fraction form
133,638.24/184,269.36 = 85,175.31/x - Step 3: Cross multiply
133,638.24x = 184,269.36 × 85,175.31 - Step 4: Simplify right side
133,638.24x = 15,695,199,861.50 - Step 5: Solve for x
x = 15,695,199,861.50/133,638.24 - Step 6: Final answer
x = 117,445.42
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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.