Finding the Fourth Proportional to 151,874.12, 209,684.82 and 135,930.92
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Solution
The fourth proportional to 151,874.12, 209,684.82 and 135,930.92 is: 187,672.86
Step by Step Solution
- Step 1: Write the proportion equation
151,874.12 : 209,684.82 = 135,930.92 : x - Step 2: Convert to fraction form
151,874.12/209,684.82 = 135,930.92/x - Step 3: Cross multiply
151,874.12x = 209,684.82 × 135,930.92 - Step 4: Simplify right side
151,874.12x = 28,502,650,492.63 - Step 5: Solve for x
x = 28,502,650,492.63/151,874.12 - Step 6: Final answer
x = 187,672.86
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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.