Finding the Fourth Proportional to 106,839.19, 160,313.46 and 43,705.97
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Solution
The fourth proportional to 106,839.19, 160,313.46 and 43,705.97 is: 65,581.32
Step by Step Solution
- Step 1: Write the proportion equation
106,839.19 : 160,313.46 = 43,705.97 : x - Step 2: Convert to fraction form
106,839.19/160,313.46 = 43,705.97/x - Step 3: Cross multiply
106,839.19x = 160,313.46 × 43,705.97 - Step 4: Simplify right side
106,839.19x = 7,006,655,072.96 - Step 5: Solve for x
x = 7,006,655,072.96/106,839.19 - Step 6: Final answer
x = 65,581.32
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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.