Finding the Fourth Proportional to 115,834.40, 174,122.80 and 107,616.80
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Solution
The fourth proportional to 115,834.40, 174,122.80 and 107,616.80 is: 161,770.07
Step by Step Solution
- Step 1: Write the proportion equation
115,834.40 : 174,122.80 = 107,616.80 : x - Step 2: Convert to fraction form
115,834.40/174,122.80 = 107,616.80/x - Step 3: Cross multiply
115,834.40x = 174,122.80 × 107,616.80 - Step 4: Simplify right side
115,834.40x = 18,738,538,543.04 - Step 5: Solve for x
x = 18,738,538,543.04/115,834.40 - Step 6: Final answer
x = 161,770.07
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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.