Finding the Fourth Proportional to 161,479.20, 242,121.60 and 82,747.20
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Solution
The fourth proportional to 161,479.20, 242,121.60 and 82,747.20 is: 124,070.99
Step by Step Solution
- Step 1: Write the proportion equation
161,479.20 : 242,121.60 = 82,747.20 : x - Step 2: Convert to fraction form
161,479.20/242,121.60 = 82,747.20/x - Step 3: Cross multiply
161,479.20x = 242,121.60 × 82,747.20 - Step 4: Simplify right side
161,479.20x = 20,034,884,459.52 - Step 5: Solve for x
x = 20,034,884,459.52/161,479.20 - Step 6: Final answer
x = 124,070.99
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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.