Finding the Fourth Proportional to 123,953.70, 171,091.58 and 72,995.99
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Solution
The fourth proportional to 123,953.70, 171,091.58 and 72,995.99 is: 100,755.35
Step by Step Solution
- Step 1: Write the proportion equation
123,953.70 : 171,091.58 = 72,995.99 : x - Step 2: Convert to fraction form
123,953.70/171,091.58 = 72,995.99/x - Step 3: Cross multiply
123,953.70x = 171,091.58 × 72,995.99 - Step 4: Simplify right side
123,953.70x = 12,488,998,897.78 - Step 5: Solve for x
x = 12,488,998,897.78/123,953.70 - Step 6: Final answer
x = 100,755.35
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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.