Finding the Fourth Proportional to 79,108.08, 119,212.49 and 71,613.96
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Solution
The fourth proportional to 79,108.08, 119,212.49 and 71,613.96 is: 107,919.17
Step by Step Solution
- Step 1: Write the proportion equation
79,108.08 : 119,212.49 = 71,613.96 : x - Step 2: Convert to fraction form
79,108.08/119,212.49 = 71,613.96/x - Step 3: Cross multiply
79,108.08x = 119,212.49 × 71,613.96 - Step 4: Simplify right side
79,108.08x = 8,537,278,132.29 - Step 5: Solve for x
x = 8,537,278,132.29/79,108.08 - Step 6: Final answer
x = 107,919.17
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.