Finding the Fourth Proportional to 128,345.16, 192,503.01 and 33,584.49
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Solution
The fourth proportional to 128,345.16, 192,503.01 and 33,584.49 is: 50,372.88
Step by Step Solution
- Step 1: Write the proportion equation
128,345.16 : 192,503.01 = 33,584.49 : x - Step 2: Convert to fraction form
128,345.16/192,503.01 = 33,584.49/x - Step 3: Cross multiply
128,345.16x = 192,503.01 × 33,584.49 - Step 4: Simplify right side
128,345.16x = 6,465,115,414.31 - Step 5: Solve for x
x = 6,465,115,414.31/128,345.16 - Step 6: Final answer
x = 50,372.88
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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.