Finding the Fourth Proportional to 159,049.48, 219,482.72 and 87,428.99
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Solution
The fourth proportional to 159,049.48, 219,482.72 and 87,428.99 is: 120,648.94
Step by Step Solution
- Step 1: Write the proportion equation
159,049.48 : 219,482.72 = 87,428.99 : x - Step 2: Convert to fraction form
159,049.48/219,482.72 = 87,428.99/x - Step 3: Cross multiply
159,049.48x = 219,482.72 × 87,428.99 - Step 4: Simplify right side
159,049.48x = 19,189,151,546.20 - Step 5: Solve for x
x = 19,189,151,546.20/159,049.48 - Step 6: Final answer
x = 120,648.94
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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.