Finding the Fourth Proportional to 128,097.84, 192,149.07 and 39,352.14
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Solution
The fourth proportional to 128,097.84, 192,149.07 and 39,352.14 is: 59,028.92
Step by Step Solution
- Step 1: Write the proportion equation
128,097.84 : 192,149.07 = 39,352.14 : x - Step 2: Convert to fraction form
128,097.84/192,149.07 = 39,352.14/x - Step 3: Cross multiply
128,097.84x = 192,149.07 × 39,352.14 - Step 4: Simplify right side
128,097.84x = 7,561,477,103.51 - Step 5: Solve for x
x = 7,561,477,103.51/128,097.84 - Step 6: Final answer
x = 59,028.92
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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.