Finding the Fourth Proportional to 112,932.49, 169,172.85 and 67,928.99
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Solution
The fourth proportional to 112,932.49, 169,172.85 and 67,928.99 is: 101,757.61
Step by Step Solution
- Step 1: Write the proportion equation
112,932.49 : 169,172.85 = 67,928.99 : x - Step 2: Convert to fraction form
112,932.49/169,172.85 = 67,928.99/x - Step 3: Cross multiply
112,932.49x = 169,172.85 × 67,928.99 - Step 4: Simplify right side
112,932.49x = 11,491,740,835.92 - Step 5: Solve for x
x = 11,491,740,835.92/112,932.49 - Step 6: Final answer
x = 101,757.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.