Finding the Fourth Proportional to 99,885.84, 149,658.18 and 54,944.82
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Solution
The fourth proportional to 99,885.84, 149,658.18 and 54,944.82 is: 82,323.40
Step by Step Solution
- Step 1: Write the proportion equation
99,885.84 : 149,658.18 = 54,944.82 : x - Step 2: Convert to fraction form
99,885.84/149,658.18 = 54,944.82/x - Step 3: Cross multiply
99,885.84x = 149,658.18 × 54,944.82 - Step 4: Simplify right side
99,885.84x = 8,222,941,761.63 - Step 5: Solve for x
x = 8,222,941,761.63/99,885.84 - Step 6: Final answer
x = 82,323.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.