Finding the Fourth Proportional to 159.99, 220.68 and 97.79
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Solution
The fourth proportional to 159.99, 220.68 and 97.79 is: 134.88
Step by Step Solution
- Step 1: Write the proportion equation
159.99 : 220.68 = 97.79 : x - Step 2: Convert to fraction form
159.99/220.68 = 97.79/x - Step 3: Cross multiply
159.99x = 220.68 × 97.79 - Step 4: Simplify right side
159.99x = 21,579.19 - Step 5: Solve for x
x = 21,579.19/159.99 - Step 6: Final answer
x = 134.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.