Finding the Fourth Proportional to 117.24, 161.52 and 88.08
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Solution
The fourth proportional to 117.24, 161.52 and 88.08 is: 121.35
Step by Step Solution
- Step 1: Write the proportion equation
117.24 : 161.52 = 88.08 : x - Step 2: Convert to fraction form
117.24/161.52 = 88.08/x - Step 3: Cross multiply
117.24x = 161.52 × 88.08 - Step 4: Simplify right side
117.24x = 14,226.68 - Step 5: Solve for x
x = 14,226.68/117.24 - Step 6: Final answer
x = 121.35
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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.