Finding the Fourth Proportional to 133,041.20, 199,586.10 and 54,163.40
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Solution
The fourth proportional to 133,041.20, 199,586.10 and 54,163.40 is: 81,254.99
Step by Step Solution
- Step 1: Write the proportion equation
133,041.20 : 199,586.10 = 54,163.40 : x - Step 2: Convert to fraction form
133,041.20/199,586.10 = 54,163.40/x - Step 3: Cross multiply
133,041.20x = 199,586.10 × 54,163.40 - Step 4: Simplify right side
133,041.20x = 10,810,261,768.74 - Step 5: Solve for x
x = 10,810,261,768.74/133,041.20 - Step 6: Final answer
x = 81,254.99
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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.