Finding the Fourth Proportional to 99,738.63, 149,687.67 and 51,720.88
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Solution
The fourth proportional to 99,738.63, 149,687.67 and 51,720.88 is: 77,622.66
Step by Step Solution
- Step 1: Write the proportion equation
99,738.63 : 149,687.67 = 51,720.88 : x - Step 2: Convert to fraction form
99,738.63/149,687.67 = 51,720.88/x - Step 3: Cross multiply
99,738.63x = 149,687.67 × 51,720.88 - Step 4: Simplify right side
99,738.63x = 7,741,978,017.55 - Step 5: Solve for x
x = 7,741,978,017.55/99,738.63 - Step 6: Final answer
x = 77,622.66
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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.