Finding the Fourth Proportional to 112,015.48, 154,570.26 and 68,988.28
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Solution
The fourth proportional to 112,015.48, 154,570.26 and 68,988.28 is: 95,196.99
Step by Step Solution
- Step 1: Write the proportion equation
112,015.48 : 154,570.26 = 68,988.28 : x - Step 2: Convert to fraction form
112,015.48/154,570.26 = 68,988.28/x - Step 3: Cross multiply
112,015.48x = 154,570.26 × 68,988.28 - Step 4: Simplify right side
112,015.48x = 10,663,536,376.55 - Step 5: Solve for x
x = 10,663,536,376.55/112,015.48 - Step 6: Final answer
x = 95,196.99
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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.