Finding the Fourth Proportional to 99,863.08, 149,713.40 and 68,193.28
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Solution
The fourth proportional to 99,863.08, 149,713.40 and 68,193.28 is: 102,234.46
Step by Step Solution
- Step 1: Write the proportion equation
99,863.08 : 149,713.40 = 68,193.28 : x - Step 2: Convert to fraction form
99,863.08/149,713.40 = 68,193.28/x - Step 3: Cross multiply
99,863.08x = 149,713.40 × 68,193.28 - Step 4: Simplify right side
99,863.08x = 10,209,447,805.95 - Step 5: Solve for x
x = 10,209,447,805.95/99,863.08 - Step 6: Final answer
x = 102,234.46
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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.