Finding the Fourth Proportional to 157,616.20, 217,501.77 and 89,623.99
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Solution
The fourth proportional to 157,616.20, 217,501.77 and 89,623.99 is: 123,676.22
Step by Step Solution
- Step 1: Write the proportion equation
157,616.20 : 217,501.77 = 89,623.99 : x - Step 2: Convert to fraction form
157,616.20/217,501.77 = 89,623.99/x - Step 3: Cross multiply
157,616.20x = 217,501.77 × 89,623.99 - Step 4: Simplify right side
157,616.20x = 19,493,376,459.46 - Step 5: Solve for x
x = 19,493,376,459.46/157,616.20 - Step 6: Final answer
x = 123,676.22
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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.