Finding the Fourth Proportional to 135,613.75, 203,420.64 and 52,507.75
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Solution
The fourth proportional to 135,613.75, 203,420.64 and 52,507.75 is: 78,761.63
Step by Step Solution
- Step 1: Write the proportion equation
135,613.75 : 203,420.64 = 52,507.75 : x - Step 2: Convert to fraction form
135,613.75/203,420.64 = 52,507.75/x - Step 3: Cross multiply
135,613.75x = 203,420.64 × 52,507.75 - Step 4: Simplify right side
135,613.75x = 10,681,160,109.96 - Step 5: Solve for x
x = 10,681,160,109.96/135,613.75 - Step 6: Final answer
x = 78,761.63
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1.5x scale
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.