Finding the Fourth Proportional to 135,744.26, 202,514.20 and 128,395.94
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Solution
The fourth proportional to 135,744.26, 202,514.20 and 128,395.94 is: 191,551.39
Step by Step Solution
- Step 1: Write the proportion equation
135,744.26 : 202,514.20 = 128,395.94 : x - Step 2: Convert to fraction form
135,744.26/202,514.20 = 128,395.94/x - Step 3: Cross multiply
135,744.26x = 202,514.20 × 128,395.94 - Step 4: Simplify right side
135,744.26x = 26,002,001,072.35 - Step 5: Solve for x
x = 26,002,001,072.35/135,744.26 - Step 6: Final answer
x = 191,551.39
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.