Finding the Fourth Proportional to 99,857.08, 149,704.40 and 68,187.28
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Solution
The fourth proportional to 99,857.08, 149,704.40 and 68,187.28 is: 102,225.46
Step by Step Solution
- Step 1: Write the proportion equation
99,857.08 : 149,704.40 = 68,187.28 : x - Step 2: Convert to fraction form
99,857.08/149,704.40 = 68,187.28/x - Step 3: Cross multiply
99,857.08x = 149,704.40 × 68,187.28 - Step 4: Simplify right side
99,857.08x = 10,207,935,840.03 - Step 5: Solve for x
x = 10,207,935,840.03/99,857.08 - Step 6: Final answer
x = 102,225.46
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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.