Finding the Fourth Proportional to 148,699.68, 205,198.56 and 80,715.12
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Solution
The fourth proportional to 148,699.68, 205,198.56 and 80,715.12 is: 111,383.07
Step by Step Solution
- Step 1: Write the proportion equation
148,699.68 : 205,198.56 = 80,715.12 : x - Step 2: Convert to fraction form
148,699.68/205,198.56 = 80,715.12/x - Step 3: Cross multiply
148,699.68x = 205,198.56 × 80,715.12 - Step 4: Simplify right side
148,699.68x = 16,562,626,394.23 - Step 5: Solve for x
x = 16,562,626,394.23/148,699.68 - Step 6: Final answer
x = 111,383.07
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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.