Finding the Fourth Proportional to 121,737.15, 182,605.74 and 79,882.05
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Solution
The fourth proportional to 121,737.15, 182,605.74 and 79,882.05 is: 119,823.08
Step by Step Solution
- Step 1: Write the proportion equation
121,737.15 : 182,605.74 = 79,882.05 : x - Step 2: Convert to fraction form
121,737.15/182,605.74 = 79,882.05/x - Step 3: Cross multiply
121,737.15x = 182,605.74 × 79,882.05 - Step 4: Simplify right side
121,737.15x = 14,586,920,852.97 - Step 5: Solve for x
x = 14,586,920,852.97/121,737.15 - Step 6: Final answer
x = 119,823.08
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1.5x scale
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.