Finding the Fourth Proportional to 135,968.66, 203,931.92 and 69,457.94
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Solution
The fourth proportional to 135,968.66, 203,931.92 and 69,457.94 is: 104,176.15
Step by Step Solution
- Step 1: Write the proportion equation
135,968.66 : 203,931.92 = 69,457.94 : x - Step 2: Convert to fraction form
135,968.66/203,931.92 = 69,457.94/x - Step 3: Cross multiply
135,968.66x = 203,931.92 × 69,457.94 - Step 4: Simplify right side
135,968.66x = 14,164,691,063.44 - Step 5: Solve for x
x = 14,164,691,063.44/135,968.66 - Step 6: Final answer
x = 104,176.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.