Finding the Fourth Proportional to 160.18, 220.99 and 93.79
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Solution
The fourth proportional to 160.18, 220.99 and 93.79 is: 129.40
Step by Step Solution
- Step 1: Write the proportion equation
160.18 : 220.99 = 93.79 : x - Step 2: Convert to fraction form
160.18/220.99 = 93.79/x - Step 3: Cross multiply
160.18x = 220.99 × 93.79 - Step 4: Simplify right side
160.18x = 20,726.65 - Step 5: Solve for x
x = 20,726.65/160.18 - Step 6: Final answer
x = 129.40
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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.