Finding the Fourth Proportional to 107,638.08, 161,376.68 and 74,262.92
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Solution
The fourth proportional to 107,638.08, 161,376.68 and 74,262.92 is: 111,338.88
Step by Step Solution
- Step 1: Write the proportion equation
107,638.08 : 161,376.68 = 74,262.92 : x - Step 2: Convert to fraction form
107,638.08/161,376.68 = 74,262.92/x - Step 3: Cross multiply
107,638.08x = 161,376.68 × 74,262.92 - Step 4: Simplify right side
107,638.08x = 11,984,303,476.71 - Step 5: Solve for x
x = 11,984,303,476.71/107,638.08 - Step 6: Final answer
x = 111,338.88
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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.