Finding the Fourth Proportional to 110.68, 153.08 and 97.74
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Solution
The fourth proportional to 110.68, 153.08 and 97.74 is: 135.18
Step by Step Solution
- Step 1: Write the proportion equation
110.68 : 153.08 = 97.74 : x - Step 2: Convert to fraction form
110.68/153.08 = 97.74/x - Step 3: Cross multiply
110.68x = 153.08 × 97.74 - Step 4: Simplify right side
110.68x = 14,962.04 - Step 5: Solve for x
x = 14,962.04/110.68 - Step 6: Final answer
x = 135.18
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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.