Finding the Fourth Proportional to 128,618.97, 192,881.07 and 44,357.51
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Solution
The fourth proportional to 128,618.97, 192,881.07 and 44,357.51 is: 66,519.92
Step by Step Solution
- Step 1: Write the proportion equation
128,618.97 : 192,881.07 = 44,357.51 : x - Step 2: Convert to fraction form
128,618.97/192,881.07 = 44,357.51/x - Step 3: Cross multiply
128,618.97x = 192,881.07 × 44,357.51 - Step 4: Simplify right side
128,618.97x = 8,555,723,026.93 - Step 5: Solve for x
x = 8,555,723,026.93/128,618.97 - Step 6: Final answer
x = 66,519.92
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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.