Finding the Fourth Proportional to 163,239.12, 244,830.96 and 74,471.76
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Solution
The fourth proportional to 163,239.12, 244,830.96 and 74,471.76 is: 111,694.99
Step by Step Solution
- Step 1: Write the proportion equation
163,239.12 : 244,830.96 = 74,471.76 : x - Step 2: Convert to fraction form
163,239.12/244,830.96 = 74,471.76/x - Step 3: Cross multiply
163,239.12x = 244,830.96 × 74,471.76 - Step 4: Simplify right side
163,239.12x = 18,232,992,493.69 - Step 5: Solve for x
x = 18,232,992,493.69/163,239.12 - Step 6: Final answer
x = 111,694.99
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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.