Finding the Fourth Proportional to 103,183.24, 142,329.66 and 68,257.46
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Solution
The fourth proportional to 103,183.24, 142,329.66 and 68,257.46 is: 94,153.48
Step by Step Solution
- Step 1: Write the proportion equation
103,183.24 : 142,329.66 = 68,257.46 : x - Step 2: Convert to fraction form
103,183.24/142,329.66 = 68,257.46/x - Step 3: Cross multiply
103,183.24x = 142,329.66 × 68,257.46 - Step 4: Simplify right side
103,183.24x = 9,715,060,362.62 - Step 5: Solve for x
x = 9,715,060,362.62/103,183.24 - Step 6: Final answer
x = 94,153.48
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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.