Finding the Fourth Proportional to 159,231.44, 219,744.68 and 87,616.72
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Solution
The fourth proportional to 159,231.44, 219,744.68 and 87,616.72 is: 120,913.99
Step by Step Solution
- Step 1: Write the proportion equation
159,231.44 : 219,744.68 = 87,616.72 : x - Step 2: Convert to fraction form
159,231.44/219,744.68 = 87,616.72/x - Step 3: Cross multiply
159,231.44x = 219,744.68 × 87,616.72 - Step 4: Simplify right side
159,231.44x = 19,253,308,099.05 - Step 5: Solve for x
x = 19,253,308,099.05/159,231.44 - Step 6: Final answer
x = 120,913.99
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1.5x scale
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.