Finding the Fourth Proportional to 159.17, 239.05 and 98.72
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Solution
The fourth proportional to 159.17, 239.05 and 98.72 is: 148.27
Step by Step Solution
- Step 1: Write the proportion equation
159.17 : 239.05 = 98.72 : x - Step 2: Convert to fraction form
159.17/239.05 = 98.72/x - Step 3: Cross multiply
159.17x = 239.05 × 98.72 - Step 4: Simplify right side
159.17x = 23,598.84 - Step 5: Solve for x
x = 23,598.84/159.17 - Step 6: Final answer
x = 148.27
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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.