Finding the Fourth Proportional to 137,170.58, 189,302.75 and 76,737.62
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Solution
The fourth proportional to 137,170.58, 189,302.75 and 76,737.62 is: 105,902.03
Step by Step Solution
- Step 1: Write the proportion equation
137,170.58 : 189,302.75 = 76,737.62 : x - Step 2: Convert to fraction form
137,170.58/189,302.75 = 76,737.62/x - Step 3: Cross multiply
137,170.58x = 189,302.75 × 76,737.62 - Step 4: Simplify right side
137,170.58x = 14,526,641,929.26 - Step 5: Solve for x
x = 14,526,641,929.26/137,170.58 - Step 6: Final answer
x = 105,902.03
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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.