Finding the Fourth Proportional to 99,805.04, 149,785.76 and 69,622.96
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Solution
The fourth proportional to 99,805.04, 149,785.76 and 69,622.96 is: 104,488.99
Step by Step Solution
- Step 1: Write the proportion equation
99,805.04 : 149,785.76 = 69,622.96 : x - Step 2: Convert to fraction form
99,805.04/149,785.76 = 69,622.96/x - Step 3: Cross multiply
99,805.04x = 149,785.76 × 69,622.96 - Step 4: Simplify right side
99,805.04x = 10,428,527,776.64 - Step 5: Solve for x
x = 10,428,527,776.64/99,805.04 - Step 6: Final answer
x = 104,488.99
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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.