Finding the Fourth Proportional to 135,556.77, 203,135.34 and 75,502.55
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Solution
The fourth proportional to 135,556.77, 203,135.34 and 75,502.55 is: 113,142.53
Step by Step Solution
- Step 1: Write the proportion equation
135,556.77 : 203,135.34 = 75,502.55 : x - Step 2: Convert to fraction form
135,556.77/203,135.34 = 75,502.55/x - Step 3: Cross multiply
135,556.77x = 203,135.34 × 75,502.55 - Step 4: Simplify right side
135,556.77x = 15,337,235,764.15 - Step 5: Solve for x
x = 15,337,235,764.15/135,556.77 - Step 6: Final answer
x = 113,142.53
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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.