Finding the Fourth Proportional to 163,306.71, 225,357.48 and 91,689.75
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Solution
The fourth proportional to 163,306.71, 225,357.48 and 91,689.75 is: 126,528.61
Step by Step Solution
- Step 1: Write the proportion equation
163,306.71 : 225,357.48 = 91,689.75 : x - Step 2: Convert to fraction form
163,306.71/225,357.48 = 91,689.75/x - Step 3: Cross multiply
163,306.71x = 225,357.48 × 91,689.75 - Step 4: Simplify right side
163,306.71x = 20,662,971,001.83 - Step 5: Solve for x
x = 20,662,971,001.83/163,306.71 - Step 6: Final answer
x = 126,528.61
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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.