Finding the Fourth Proportional to 112,475.68, 155,211.60 and 61,487.44
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Solution
The fourth proportional to 112,475.68, 155,211.60 and 61,487.44 is: 84,850.02
Step by Step Solution
- Step 1: Write the proportion equation
112,475.68 : 155,211.60 = 61,487.44 : x - Step 2: Convert to fraction form
112,475.68/155,211.60 = 61,487.44/x - Step 3: Cross multiply
112,475.68x = 155,211.60 × 61,487.44 - Step 4: Simplify right side
112,475.68x = 9,543,563,942.30 - Step 5: Solve for x
x = 9,543,563,942.30/112,475.68 - Step 6: Final answer
x = 84,850.02
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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.