Finding the Fourth Proportional to 106,939.11, 160,318.44 and 67,409.07
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Solution
The fourth proportional to 106,939.11, 160,318.44 and 67,409.07 is: 101,056.73
Step by Step Solution
- Step 1: Write the proportion equation
106,939.11 : 160,318.44 = 67,409.07 : x - Step 2: Convert to fraction form
106,939.11/160,318.44 = 67,409.07/x - Step 3: Cross multiply
106,939.11x = 160,318.44 × 67,409.07 - Step 4: Simplify right side
106,939.11x = 10,806,916,944.25 - Step 5: Solve for x
x = 10,806,916,944.25/106,939.11 - Step 6: Final answer
x = 101,056.73
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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.