Finding the Fourth Proportional to 157,374.68, 217,170.24 and 89,391.44
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Solution
The fourth proportional to 157,374.68, 217,170.24 and 89,391.44 is: 123,356.31
Step by Step Solution
- Step 1: Write the proportion equation
157,374.68 : 217,170.24 = 89,391.44 : x - Step 2: Convert to fraction form
157,374.68/217,170.24 = 89,391.44/x - Step 3: Cross multiply
157,374.68x = 217,170.24 × 89,391.44 - Step 4: Simplify right side
157,374.68x = 19,413,160,478.75 - Step 5: Solve for x
x = 19,413,160,478.75/157,374.68 - Step 6: Final answer
x = 123,356.31
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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.