Finding the Fourth Proportional to 163,234.65, 225,285.80 and 91,618.59
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Solution
The fourth proportional to 163,234.65, 225,285.80 and 91,618.59 is: 126,445.99
Step by Step Solution
- Step 1: Write the proportion equation
163,234.65 : 225,285.80 = 91,618.59 : x - Step 2: Convert to fraction form
163,234.65/225,285.80 = 91,618.59/x - Step 3: Cross multiply
163,234.65x = 225,285.80 × 91,618.59 - Step 4: Simplify right side
163,234.65x = 20,640,367,343.02 - Step 5: Solve for x
x = 20,640,367,343.02/163,234.65 - Step 6: Final answer
x = 126,445.99
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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.