Finding the Fourth Proportional to 120,893.08, 166,829.12 and 67,176.72
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Solution
The fourth proportional to 120,893.08, 166,829.12 and 67,176.72 is: 92,702.02
Step by Step Solution
- Step 1: Write the proportion equation
120,893.08 : 166,829.12 = 67,176.72 : x - Step 2: Convert to fraction form
120,893.08/166,829.12 = 67,176.72/x - Step 3: Cross multiply
120,893.08x = 166,829.12 × 67,176.72 - Step 4: Simplify right side
120,893.08x = 11,207,033,082.09 - Step 5: Solve for x
x = 11,207,033,082.09/120,893.08 - Step 6: Final answer
x = 92,702.02
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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.