Finding the Fourth Proportional to 157,520.49, 217,378.62 and 89,537.88
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Solution
The fourth proportional to 157,520.49, 217,378.62 and 89,537.88 is: 123,562.47
Step by Step Solution
- Step 1: Write the proportion equation
157,520.49 : 217,378.62 = 89,537.88 : x - Step 2: Convert to fraction form
157,520.49/217,378.62 = 89,537.88/x - Step 3: Cross multiply
157,520.49x = 217,378.62 × 89,537.88 - Step 4: Simplify right side
157,520.49x = 19,463,620,792.13 - Step 5: Solve for x
x = 19,463,620,792.13/157,520.49 - Step 6: Final answer
x = 123,562.47
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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.