Finding the Fourth Proportional to 106,328.88, 159,524.51 and 31,451.00
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Solution
The fourth proportional to 106,328.88, 159,524.51 and 31,451.00 is: 47,185.72
Step by Step Solution
- Step 1: Write the proportion equation
106,328.88 : 159,524.51 = 31,451.00 : x - Step 2: Convert to fraction form
106,328.88/159,524.51 = 31,451.00/x - Step 3: Cross multiply
106,328.88x = 159,524.51 × 31,451.00 - Step 4: Simplify right side
106,328.88x = 5,017,204,409.13 - Step 5: Solve for x
x = 5,017,204,409.13/106,328.88 - Step 6: Final answer
x = 47,185.72
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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.