Finding the Fourth Proportional to 106,499.21, 159,664.64 and 53,163.81
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Solution
The fourth proportional to 106,499.21, 159,664.64 and 53,163.81 is: 79,703.70
Step by Step Solution
- Step 1: Write the proportion equation
106,499.21 : 159,664.64 = 53,163.81 : x - Step 2: Convert to fraction form
106,499.21/159,664.64 = 53,163.81/x - Step 3: Cross multiply
106,499.21x = 159,664.64 × 53,163.81 - Step 4: Simplify right side
106,499.21x = 8,488,380,318.86 - Step 5: Solve for x
x = 8,488,380,318.86/106,499.21 - Step 6: Final answer
x = 79,703.70
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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.