Finding the Fourth Proportional to 157,755.63, 236,634.12 and 39,427.14
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Solution
The fourth proportional to 157,755.63, 236,634.12 and 39,427.14 is: 59,140.88
Step by Step Solution
- Step 1: Write the proportion equation
157,755.63 : 236,634.12 = 39,427.14 : x - Step 2: Convert to fraction form
157,755.63/236,634.12 = 39,427.14/x - Step 3: Cross multiply
157,755.63x = 236,634.12 × 39,427.14 - Step 4: Simplify right side
157,755.63x = 9,329,806,578.02 - Step 5: Solve for x
x = 9,329,806,578.02/157,755.63 - Step 6: Final answer
x = 59,140.88
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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.