Finding the Fourth Proportional to 108,684.72, 150,049.26 and 68,432.99
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Solution
The fourth proportional to 108,684.72, 150,049.26 and 68,432.99 is: 94,478.03
Step by Step Solution
- Step 1: Write the proportion equation
108,684.72 : 150,049.26 = 68,432.99 : x - Step 2: Convert to fraction form
108,684.72/150,049.26 = 68,432.99/x - Step 3: Cross multiply
108,684.72x = 150,049.26 × 68,432.99 - Step 4: Simplify right side
108,684.72x = 10,268,318,758.84 - Step 5: Solve for x
x = 10,268,318,758.84/108,684.72 - Step 6: Final answer
x = 94,478.03
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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.