Finding the Fourth Proportional to 128,415.15, 192,574.83 and 44,151.48
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Solution
The fourth proportional to 128,415.15, 192,574.83 and 44,151.48 is: 66,210.75
Step by Step Solution
- Step 1: Write the proportion equation
128,415.15 : 192,574.83 = 44,151.48 : x - Step 2: Convert to fraction form
128,415.15/192,574.83 = 44,151.48/x - Step 3: Cross multiply
128,415.15x = 192,574.83 × 44,151.48 - Step 4: Simplify right side
128,415.15x = 8,502,463,755.25 - Step 5: Solve for x
x = 8,502,463,755.25/128,415.15 - Step 6: Final answer
x = 66,210.75
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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.