Finding the Fourth Proportional to 97.15, 133.95 and 84.01
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Solution
The fourth proportional to 97.15, 133.95 and 84.01 is: 115.83
Step by Step Solution
- Step 1: Write the proportion equation
97.15 : 133.95 = 84.01 : x - Step 2: Convert to fraction form
97.15/133.95 = 84.01/x - Step 3: Cross multiply
97.15x = 133.95 × 84.01 - Step 4: Simplify right side
97.15x = 11,253.14 - Step 5: Solve for x
x = 11,253.14/97.15 - Step 6: Final answer
x = 115.83
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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.