Finding the Fourth Proportional to 157,408.84, 217,231.91 and 88,519.99
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Solution
The fourth proportional to 157,408.84, 217,231.91 and 88,519.99 is: 122,161.92
Step by Step Solution
- Step 1: Write the proportion equation
157,408.84 : 217,231.91 = 88,519.99 : x - Step 2: Convert to fraction form
157,408.84/217,231.91 = 88,519.99/x - Step 3: Cross multiply
157,408.84x = 217,231.91 × 88,519.99 - Step 4: Simplify right side
157,408.84x = 19,229,366,500.88 - Step 5: Solve for x
x = 19,229,366,500.88/157,408.84 - Step 6: Final answer
x = 122,161.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.