Finding the Fourth Proportional to 176,118.20, 242,916.36 and 121,689.44
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Solution
The fourth proportional to 176,118.20, 242,916.36 and 121,689.44 is: 167,843.84
Step by Step Solution
- Step 1: Write the proportion equation
176,118.20 : 242,916.36 = 121,689.44 : x - Step 2: Convert to fraction form
176,118.20/242,916.36 = 121,689.44/x - Step 3: Cross multiply
176,118.20x = 242,916.36 × 121,689.44 - Step 4: Simplify right side
176,118.20x = 29,560,355,815.24 - Step 5: Solve for x
x = 29,560,355,815.24/176,118.20 - Step 6: Final answer
x = 167,843.84
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1.5x scale
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.