Finding the Fourth Proportional to 135,292.68, 202,768.92 and 68,749.56
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Solution
The fourth proportional to 135,292.68, 202,768.92 and 68,749.56 is: 103,037.90
Step by Step Solution
- Step 1: Write the proportion equation
135,292.68 : 202,768.92 = 68,749.56 : x - Step 2: Convert to fraction form
135,292.68/202,768.92 = 68,749.56/x - Step 3: Cross multiply
135,292.68x = 202,768.92 × 68,749.56 - Step 4: Simplify right side
135,292.68x = 13,940,274,031.68 - Step 5: Solve for x
x = 13,940,274,031.68/135,292.68 - Step 6: Final answer
x = 103,037.90
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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.