Finding the Fourth Proportional to 106,028.65, 159,043.68 and 31,148.50
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Solution
The fourth proportional to 106,028.65, 159,043.68 and 31,148.50 is: 46,722.96
Step by Step Solution
- Step 1: Write the proportion equation
106,028.65 : 159,043.68 = 31,148.50 : x - Step 2: Convert to fraction form
106,028.65/159,043.68 = 31,148.50/x - Step 3: Cross multiply
106,028.65x = 159,043.68 × 31,148.50 - Step 4: Simplify right side
106,028.65x = 4,953,972,066.48 - Step 5: Solve for x
x = 4,953,972,066.48/106,028.65 - Step 6: Final answer
x = 46,722.96
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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.