Finding the Fourth Proportional to 132,913.20, 183,415.79 and 79,170.41
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Solution
The fourth proportional to 132,913.20, 183,415.79 and 79,170.41 is: 109,252.53
Step by Step Solution
- Step 1: Write the proportion equation
132,913.20 : 183,415.79 = 79,170.41 : x - Step 2: Convert to fraction form
132,913.20/183,415.79 = 79,170.41/x - Step 3: Cross multiply
132,913.20x = 183,415.79 × 79,170.41 - Step 4: Simplify right side
132,913.20x = 14,521,103,951.24 - Step 5: Solve for x
x = 14,521,103,951.24/132,913.20 - Step 6: Final answer
x = 109,252.53
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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.