Finding the Fourth Proportional to 128,247.28, 192,436.53 and 58,117.48
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Solution
The fourth proportional to 128,247.28, 192,436.53 and 58,117.48 is: 87,205.95
Step by Step Solution
- Step 1: Write the proportion equation
128,247.28 : 192,436.53 = 58,117.48 : x - Step 2: Convert to fraction form
128,247.28/192,436.53 = 58,117.48/x - Step 3: Cross multiply
128,247.28x = 192,436.53 × 58,117.48 - Step 4: Simplify right side
128,247.28x = 11,183,926,183.54 - Step 5: Solve for x
x = 11,183,926,183.54/128,247.28 - Step 6: Final answer
x = 87,205.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.