Finding the Fourth Proportional to 113,757.05, 170,502.75 and 85,586.63
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Solution
The fourth proportional to 113,757.05, 170,502.75 and 85,586.63 is: 128,280.01
Step by Step Solution
- Step 1: Write the proportion equation
113,757.05 : 170,502.75 = 85,586.63 : x - Step 2: Convert to fraction form
113,757.05/170,502.75 = 85,586.63/x - Step 3: Cross multiply
113,757.05x = 170,502.75 × 85,586.63 - Step 4: Simplify right side
113,757.05x = 14,592,755,778.23 - Step 5: Solve for x
x = 14,592,755,778.23/113,757.05 - Step 6: Final answer
x = 128,280.01
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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.