Finding the Fourth Proportional to 99,927.12, 149,846.76 and 53,168.88
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Solution
The fourth proportional to 99,927.12, 149,846.76 and 53,168.88 is: 79,729.95
Step by Step Solution
- Step 1: Write the proportion equation
99,927.12 : 149,846.76 = 53,168.88 : x - Step 2: Convert to fraction form
99,927.12/149,846.76 = 53,168.88/x - Step 3: Cross multiply
99,927.12x = 149,846.76 × 53,168.88 - Step 4: Simplify right side
99,927.12x = 7,967,184,400.83 - Step 5: Solve for x
x = 7,967,184,400.83/99,927.12 - Step 6: Final answer
x = 79,729.95
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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.