Finding the Fourth Proportional to 158,902.88, 219,285.99 and 87,284.12
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Solution
The fourth proportional to 158,902.88, 219,285.99 and 87,284.12 is: 120,452.09
Step by Step Solution
- Step 1: Write the proportion equation
158,902.88 : 219,285.99 = 87,284.12 : x - Step 2: Convert to fraction form
158,902.88/219,285.99 = 87,284.12/x - Step 3: Cross multiply
158,902.88x = 219,285.99 × 87,284.12 - Step 4: Simplify right side
158,902.88x = 19,140,183,569.05 - Step 5: Solve for x
x = 19,140,183,569.05/158,902.88 - Step 6: Final answer
x = 120,452.09
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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.