Finding the Fourth Proportional to 135,380.61, 203,257.26 and 68,865.75
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Solution
The fourth proportional to 135,380.61, 203,257.26 and 68,865.75 is: 103,393.42
Step by Step Solution
- Step 1: Write the proportion equation
135,380.61 : 203,257.26 = 68,865.75 : x - Step 2: Convert to fraction form
135,380.61/203,257.26 = 68,865.75/x - Step 3: Cross multiply
135,380.61x = 203,257.26 × 68,865.75 - Step 4: Simplify right side
135,380.61x = 13,997,463,652.85 - Step 5: Solve for x
x = 13,997,463,652.85/135,380.61 - Step 6: Final answer
x = 103,393.42
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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.