Finding the Fourth Proportional to 112,241.07, 154,949.82 and 86,690.09
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Solution
The fourth proportional to 112,241.07, 154,949.82 and 86,690.09 is: 119,676.45
Step by Step Solution
- Step 1: Write the proportion equation
112,241.07 : 154,949.82 = 86,690.09 : x - Step 2: Convert to fraction form
112,241.07/154,949.82 = 86,690.09/x - Step 3: Cross multiply
112,241.07x = 154,949.82 × 86,690.09 - Step 4: Simplify right side
112,241.07x = 13,432,613,066.53 - Step 5: Solve for x
x = 13,432,613,066.53/112,241.07 - Step 6: Final answer
x = 119,676.45
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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.