Finding the Fourth Proportional to 107,898.40, 161,770.80 and 41,312.80
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Solution
The fourth proportional to 107,898.40, 161,770.80 and 41,312.80 is: 61,939.79
Step by Step Solution
- Step 1: Write the proportion equation
107,898.40 : 161,770.80 = 41,312.80 : x - Step 2: Convert to fraction form
107,898.40/161,770.80 = 41,312.80/x - Step 3: Cross multiply
107,898.40x = 161,770.80 × 41,312.80 - Step 4: Simplify right side
107,898.40x = 6,683,204,706.24 - Step 5: Solve for x
x = 6,683,204,706.24/107,898.40 - Step 6: Final answer
x = 61,939.79
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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.