Finding the Fourth Proportional to 112,841.49, 155,715.48 and 65,091.99
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Solution
The fourth proportional to 112,841.49, 155,715.48 and 65,091.99 is: 89,823.61
Step by Step Solution
- Step 1: Write the proportion equation
112,841.49 : 155,715.48 = 65,091.99 : x - Step 2: Convert to fraction form
112,841.49/155,715.48 = 65,091.99/x - Step 3: Cross multiply
112,841.49x = 155,715.48 × 65,091.99 - Step 4: Simplify right side
112,841.49x = 10,135,830,467.01 - Step 5: Solve for x
x = 10,135,830,467.01/112,841.49 - Step 6: Final answer
x = 89,823.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.