Finding the Fourth Proportional to 128,355.86, 192,492.84 and 44,095.70
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Solution
The fourth proportional to 128,355.86, 192,492.84 and 44,095.70 is: 66,129.48
Step by Step Solution
- Step 1: Write the proportion equation
128,355.86 : 192,492.84 = 44,095.70 : x - Step 2: Convert to fraction form
128,355.86/192,492.84 = 44,095.70/x - Step 3: Cross multiply
128,355.86x = 192,492.84 × 44,095.70 - Step 4: Simplify right side
128,355.86x = 8,488,106,524.79 - Step 5: Solve for x
x = 8,488,106,524.79/128,355.86 - Step 6: Final answer
x = 66,129.48
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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.