Finding the Fourth Proportional to 159.99, 220.62 and 124.97
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Solution
The fourth proportional to 159.99, 220.62 and 124.97 is: 172.32
Step by Step Solution
- Step 1: Write the proportion equation
159.99 : 220.62 = 124.97 : x - Step 2: Convert to fraction form
159.99/220.62 = 124.97/x - Step 3: Cross multiply
159.99x = 220.62 × 124.97 - Step 4: Simplify right side
159.99x = 27,569.78 - Step 5: Solve for x
x = 27,569.78/159.99 - Step 6: Final answer
x = 172.32
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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.