Finding the Fourth Proportional to 160,689.96, 240,721.20 and 76,330.08
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Solution
The fourth proportional to 160,689.96, 240,721.20 and 76,330.08 is: 114,346.09
Step by Step Solution
- Step 1: Write the proportion equation
160,689.96 : 240,721.20 = 76,330.08 : x - Step 2: Convert to fraction form
160,689.96/240,721.20 = 76,330.08/x - Step 3: Cross multiply
160,689.96x = 240,721.20 × 76,330.08 - Step 4: Simplify right side
160,689.96x = 18,374,268,453.70 - Step 5: Solve for x
x = 18,374,268,453.70/160,689.96 - Step 6: Final answer
x = 114,346.09
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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.