Finding the Fourth Proportional to 148,855.99, 205,423.60 and 80,874.31
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Solution
The fourth proportional to 148,855.99, 205,423.60 and 80,874.31 is: 111,607.82
Step by Step Solution
- Step 1: Write the proportion equation
148,855.99 : 205,423.60 = 80,874.31 : x - Step 2: Convert to fraction form
148,855.99/205,423.60 = 80,874.31/x - Step 3: Cross multiply
148,855.99x = 205,423.60 × 80,874.31 - Step 4: Simplify right side
148,855.99x = 16,613,491,907.72 - Step 5: Solve for x
x = 16,613,491,907.72/148,855.99 - Step 6: Final answer
x = 111,607.82
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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.