Finding the Fourth Proportional to 107,902.40, 161,776.80 and 41,316.80
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Solution
The fourth proportional to 107,902.40, 161,776.80 and 41,316.80 is: 61,945.79
Step by Step Solution
- Step 1: Write the proportion equation
107,902.40 : 161,776.80 = 41,316.80 : x - Step 2: Convert to fraction form
107,902.40/161,776.80 = 41,316.80/x - Step 3: Cross multiply
107,902.40x = 161,776.80 × 41,316.80 - Step 4: Simplify right side
107,902.40x = 6,684,099,690.24 - Step 5: Solve for x
x = 6,684,099,690.24/107,902.40 - Step 6: Final answer
x = 61,945.79
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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.