Finding the Fourth Proportional to 135,163.91, 202,613.45 and 75,220.98
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Solution
The fourth proportional to 135,163.91, 202,613.45 and 75,220.98 is: 112,757.78
Step by Step Solution
- Step 1: Write the proportion equation
135,163.91 : 202,613.45 = 75,220.98 : x - Step 2: Convert to fraction form
135,163.91/202,613.45 = 75,220.98/x - Step 3: Cross multiply
135,163.91x = 202,613.45 × 75,220.98 - Step 4: Simplify right side
135,163.91x = 15,240,781,894.08 - Step 5: Solve for x
x = 15,240,781,894.08/135,163.91 - Step 6: Final answer
x = 112,757.78
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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.