Finding the Fourth Proportional to 128,236.68, 192,330.82 and 34,730.12
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Solution
The fourth proportional to 128,236.68, 192,330.82 and 34,730.12 is: 52,088.63
Step by Step Solution
- Step 1: Write the proportion equation
128,236.68 : 192,330.82 = 34,730.12 : x - Step 2: Convert to fraction form
128,236.68/192,330.82 = 34,730.12/x - Step 3: Cross multiply
128,236.68x = 192,330.82 × 34,730.12 - Step 4: Simplify right side
128,236.68x = 6,679,672,458.30 - Step 5: Solve for x
x = 6,679,672,458.30/128,236.68 - Step 6: Final answer
x = 52,088.63
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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.