Finding the Fourth Proportional to 99.68, 149.30 and 88.14
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Solution
The fourth proportional to 99.68, 149.30 and 88.14 is: 132.02
Step by Step Solution
- Step 1: Write the proportion equation
99.68 : 149.30 = 88.14 : x - Step 2: Convert to fraction form
99.68/149.30 = 88.14/x - Step 3: Cross multiply
99.68x = 149.30 × 88.14 - Step 4: Simplify right side
99.68x = 13,159.30 - Step 5: Solve for x
x = 13,159.30/99.68 - Step 6: Final answer
x = 132.02
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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.