Finding the Fourth Proportional to 157,676.16, 236,584.68 and 85,650.96
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Solution
The fourth proportional to 157,676.16, 236,584.68 and 85,650.96 is: 128,514.70
Step by Step Solution
- Step 1: Write the proportion equation
157,676.16 : 236,584.68 = 85,650.96 : x - Step 2: Convert to fraction form
157,676.16/236,584.68 = 85,650.96/x - Step 3: Cross multiply
157,676.16x = 236,584.68 × 85,650.96 - Step 4: Simplify right side
157,676.16x = 20,263,704,963.29 - Step 5: Solve for x
x = 20,263,704,963.29/157,676.16 - Step 6: Final answer
x = 128,514.70
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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.