Finding the Fourth Proportional to 105,608.46, 158,035.23 and 91,731.99
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Solution
The fourth proportional to 105,608.46, 158,035.23 and 91,731.99 is: 137,270.12
Step by Step Solution
- Step 1: Write the proportion equation
105,608.46 : 158,035.23 = 91,731.99 : x - Step 2: Convert to fraction form
105,608.46/158,035.23 = 91,731.99/x - Step 3: Cross multiply
105,608.46x = 158,035.23 × 91,731.99 - Step 4: Simplify right side
105,608.46x = 14,496,886,138.01 - Step 5: Solve for x
x = 14,496,886,138.01/105,608.46 - Step 6: Final answer
x = 137,270.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.