Finding the Fourth Proportional to 108,263.79, 162,388.40 and 38,133.99
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Solution
The fourth proportional to 108,263.79, 162,388.40 and 38,133.99 is: 57,198.42
Step by Step Solution
- Step 1: Write the proportion equation
108,263.79 : 162,388.40 = 38,133.99 : x - Step 2: Convert to fraction form
108,263.79/162,388.40 = 38,133.99/x - Step 3: Cross multiply
108,263.79x = 162,388.40 × 38,133.99 - Step 4: Simplify right side
108,263.79x = 6,192,517,431.05 - Step 5: Solve for x
x = 6,192,517,431.05/108,263.79 - Step 6: Final answer
x = 57,198.42
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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.