Finding the Fourth Proportional to 157,436.98, 217,285.68 and 93,775.84
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Solution
The fourth proportional to 157,436.98, 217,285.68 and 93,775.84 is: 129,424.15
Step by Step Solution
- Step 1: Write the proportion equation
157,436.98 : 217,285.68 = 93,775.84 : x - Step 2: Convert to fraction form
157,436.98/217,285.68 = 93,775.84/x - Step 3: Cross multiply
157,436.98x = 217,285.68 × 93,775.84 - Step 4: Simplify right side
157,436.98x = 20,376,147,161.97 - Step 5: Solve for x
x = 20,376,147,161.97/157,436.98 - Step 6: Final answer
x = 129,424.15
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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.