Finding the Fourth Proportional to 103.82, 155.56 and 58.06
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Solution
The fourth proportional to 103.82, 155.56 and 58.06 is: 86.99
Step by Step Solution
- Step 1: Write the proportion equation
103.82 : 155.56 = 58.06 : x - Step 2: Convert to fraction form
103.82/155.56 = 58.06/x - Step 3: Cross multiply
103.82x = 155.56 × 58.06 - Step 4: Simplify right side
103.82x = 9,031.81 - Step 5: Solve for x
x = 9,031.81/103.82 - Step 6: Final answer
x = 86.99
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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.