Finding the Fourth Proportional to 157,759.44, 217,938.33 and 136,501.80
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Solution
The fourth proportional to 157,759.44, 217,938.33 and 136,501.80 is: 188,571.75
Step by Step Solution
- Step 1: Write the proportion equation
157,759.44 : 217,938.33 = 136,501.80 : x - Step 2: Convert to fraction form
157,759.44/217,938.33 = 136,501.80/x - Step 3: Cross multiply
157,759.44x = 217,938.33 × 136,501.80 - Step 4: Simplify right side
157,759.44x = 29,748,974,333.99 - Step 5: Solve for x
x = 29,748,974,333.99/157,759.44 - Step 6: Final answer
x = 188,571.75
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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.