Finding the Fourth Proportional to 163,964.20, 245,946.36 and 126,578.84
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Solution
The fourth proportional to 163,964.20, 245,946.36 and 126,578.84 is: 189,868.31
Step by Step Solution
- Step 1: Write the proportion equation
163,964.20 : 245,946.36 = 126,578.84 : x - Step 2: Convert to fraction form
163,964.20/245,946.36 = 126,578.84/x - Step 3: Cross multiply
163,964.20x = 245,946.36 × 126,578.84 - Step 4: Simplify right side
163,964.20x = 31,131,604,951.02 - Step 5: Solve for x
x = 31,131,604,951.02/163,964.20 - Step 6: Final answer
x = 189,868.31
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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.