Finding the Fourth Proportional to 123,330.98, 170,193.14 and 69,620.99
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Solution
The fourth proportional to 123,330.98, 170,193.14 and 69,620.99 is: 96,074.92
Step by Step Solution
- Step 1: Write the proportion equation
123,330.98 : 170,193.14 = 69,620.99 : x - Step 2: Convert to fraction form
123,330.98/170,193.14 = 69,620.99/x - Step 3: Cross multiply
123,330.98x = 170,193.14 × 69,620.99 - Step 4: Simplify right side
123,330.98x = 11,849,013,698.94 - Step 5: Solve for x
x = 11,849,013,698.94/123,330.98 - Step 6: Final answer
x = 96,074.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.