Finding the Fourth Proportional to 99,757.44, 149,181.28 and 74,474.88
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Solution
The fourth proportional to 99,757.44, 149,181.28 and 74,474.88 is: 111,372.72
Step by Step Solution
- Step 1: Write the proportion equation
99,757.44 : 149,181.28 = 74,474.88 : x - Step 2: Convert to fraction form
99,757.44/149,181.28 = 74,474.88/x - Step 3: Cross multiply
99,757.44x = 149,181.28 × 74,474.88 - Step 4: Simplify right side
99,757.44x = 11,110,257,926.25 - Step 5: Solve for x
x = 11,110,257,926.25/99,757.44 - Step 6: Final answer
x = 111,372.72
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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.