Finding the Fourth Proportional to 166,819.99, 230,211.70 and 90,339.68
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Solution
The fourth proportional to 166,819.99, 230,211.70 and 90,339.68 is: 124,668.82
Step by Step Solution
- Step 1: Write the proportion equation
166,819.99 : 230,211.70 = 90,339.68 : x - Step 2: Convert to fraction form
166,819.99/230,211.70 = 90,339.68/x - Step 3: Cross multiply
166,819.99x = 230,211.70 × 90,339.68 - Step 4: Simplify right side
166,819.99x = 20,797,251,310.26 - Step 5: Solve for x
x = 20,797,251,310.26/166,819.99 - Step 6: Final answer
x = 124,668.82
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1.5x scale
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.