Finding the Fourth Proportional to 129,235.68, 193,774.10 and 50,257.82
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Solution
The fourth proportional to 129,235.68, 193,774.10 and 50,257.82 is: 75,355.84
Step by Step Solution
- Step 1: Write the proportion equation
129,235.68 : 193,774.10 = 50,257.82 : x - Step 2: Convert to fraction form
129,235.68/193,774.10 = 50,257.82/x - Step 3: Cross multiply
129,235.68x = 193,774.10 × 50,257.82 - Step 4: Simplify right side
129,235.68x = 9,738,663,838.46 - Step 5: Solve for x
x = 9,738,663,838.46/129,235.68 - Step 6: Final answer
x = 75,355.84
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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.