Finding the Fourth Proportional to 129,280.46, 193,872.68 and 45,018.99
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Solution
The fourth proportional to 129,280.46, 193,872.68 and 45,018.99 is: 67,511.77
Step by Step Solution
- Step 1: Write the proportion equation
129,280.46 : 193,872.68 = 45,018.99 : x - Step 2: Convert to fraction form
129,280.46/193,872.68 = 45,018.99/x - Step 3: Cross multiply
129,280.46x = 193,872.68 × 45,018.99 - Step 4: Simplify right side
129,280.46x = 8,727,952,017.10 - Step 5: Solve for x
x = 8,727,952,017.10/129,280.46 - Step 6: Final answer
x = 67,511.77
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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.