Finding the Fourth Proportional to 163,285.74, 225,318.92 and 91,651.77
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Solution
The fourth proportional to 163,285.74, 225,318.92 and 91,651.77 is: 126,470.80
Step by Step Solution
- Step 1: Write the proportion equation
163,285.74 : 225,318.92 = 91,651.77 : x - Step 2: Convert to fraction form
163,285.74/225,318.92 = 91,651.77/x - Step 3: Cross multiply
163,285.74x = 225,318.92 × 91,651.77 - Step 4: Simplify right side
163,285.74x = 20,650,877,374.23 - Step 5: Solve for x
x = 20,650,877,374.23/163,285.74 - Step 6: Final answer
x = 126,470.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.