Finding the Fourth Proportional to 128,545.92, 192,831.84 and 44,294.99
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Solution
The fourth proportional to 128,545.92, 192,831.84 and 44,294.99 is: 66,446.94
Step by Step Solution
- Step 1: Write the proportion equation
128,545.92 : 192,831.84 = 44,294.99 : x - Step 2: Convert to fraction form
128,545.92/192,831.84 = 44,294.99/x - Step 3: Cross multiply
128,545.92x = 192,831.84 × 44,294.99 - Step 4: Simplify right side
128,545.92x = 8,541,483,460.32 - Step 5: Solve for x
x = 8,541,483,460.32/128,545.92 - Step 6: Final answer
x = 66,446.94
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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.