Finding the Fourth Proportional to 159.91, 239.91 and 68.67
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Solution
The fourth proportional to 159.91, 239.91 and 68.67 is: 103.02
Step by Step Solution
- Step 1: Write the proportion equation
159.91 : 239.91 = 68.67 : x - Step 2: Convert to fraction form
159.91/239.91 = 68.67/x - Step 3: Cross multiply
159.91x = 239.91 × 68.67 - Step 4: Simplify right side
159.91x = 16,474.62 - Step 5: Solve for x
x = 16,474.62/159.91 - Step 6: Final answer
x = 103.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.