Finding the Fourth Proportional to 112,211.98, 154,838.64 and 68,626.44
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Solution
The fourth proportional to 112,211.98, 154,838.64 and 68,626.44 is: 94,695.99
Step by Step Solution
- Step 1: Write the proportion equation
112,211.98 : 154,838.64 = 68,626.44 : x - Step 2: Convert to fraction form
112,211.98/154,838.64 = 68,626.44/x - Step 3: Cross multiply
112,211.98x = 154,838.64 × 68,626.44 - Step 4: Simplify right side
112,211.98x = 10,626,024,508.97 - Step 5: Solve for x
x = 10,626,024,508.97/112,211.98 - Step 6: Final answer
x = 94,695.99
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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.