Finding the Fourth Proportional to 163,369.16, 225,473.84 and 99,743.84
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Solution
The fourth proportional to 163,369.16, 225,473.84 and 99,743.84 is: 137,661.40
Step by Step Solution
- Step 1: Write the proportion equation
163,369.16 : 225,473.84 = 99,743.84 : x - Step 2: Convert to fraction form
163,369.16/225,473.84 = 99,743.84/x - Step 3: Cross multiply
163,369.16x = 225,473.84 × 99,743.84 - Step 4: Simplify right side
163,369.16x = 22,489,626,621.15 - Step 5: Solve for x
x = 22,489,626,621.15/163,369.16 - Step 6: Final answer
x = 137,661.40
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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.