Finding the Fourth Proportional to 112,121.99, 154,765.84 and 66,814.19
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Solution
The fourth proportional to 112,121.99, 154,765.84 and 66,814.19 is: 92,225.92
Step by Step Solution
- Step 1: Write the proportion equation
112,121.99 : 154,765.84 = 66,814.19 : x - Step 2: Convert to fraction form
112,121.99/154,765.84 = 66,814.19/x - Step 3: Cross multiply
112,121.99x = 154,765.84 × 66,814.19 - Step 4: Simplify right side
112,121.99x = 10,340,553,298.40 - Step 5: Solve for x
x = 10,340,553,298.40/112,121.99 - Step 6: Final answer
x = 92,225.92
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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.