Finding the Fourth Proportional to 106,313.84, 159,415.41 and 39,699.19
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Solution
The fourth proportional to 106,313.84, 159,415.41 and 39,699.19 is: 59,528.12
Step by Step Solution
- Step 1: Write the proportion equation
106,313.84 : 159,415.41 = 39,699.19 : x - Step 2: Convert to fraction form
106,313.84/159,415.41 = 39,699.19/x - Step 3: Cross multiply
106,313.84x = 159,415.41 × 39,699.19 - Step 4: Simplify right side
106,313.84x = 6,328,663,049.06 - Step 5: Solve for x
x = 6,328,663,049.06/106,313.84 - Step 6: Final answer
x = 59,528.12
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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.