Finding the Fourth Proportional to 67,155.68, 100,163.53 and 65,974.88
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Solution
The fourth proportional to 67,155.68, 100,163.53 and 65,974.88 is: 98,402.35
Step by Step Solution
- Step 1: Write the proportion equation
67,155.68 : 100,163.53 = 65,974.88 : x - Step 2: Convert to fraction form
67,155.68/100,163.53 = 65,974.88/x - Step 3: Cross multiply
67,155.68x = 100,163.53 × 65,974.88 - Step 4: Simplify right side
67,155.68x = 6,608,276,872.13 - Step 5: Solve for x
x = 6,608,276,872.13/67,155.68 - Step 6: Final answer
x = 98,402.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.