Finding the Fourth Proportional to 137,301.18, 189,466.44 and 76,861.62
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Solution
The fourth proportional to 137,301.18, 189,466.44 and 76,861.62 is: 106,063.89
Step by Step Solution
- Step 1: Write the proportion equation
137,301.18 : 189,466.44 = 76,861.62 : x - Step 2: Convert to fraction form
137,301.18/189,466.44 = 76,861.62/x - Step 3: Cross multiply
137,301.18x = 189,466.44 × 76,861.62 - Step 4: Simplify right side
137,301.18x = 14,562,697,514.03 - Step 5: Solve for x
x = 14,562,697,514.03/137,301.18 - Step 6: Final answer
x = 106,063.89
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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.