Finding the Fourth Proportional to 128,176.72, 192,265.08 and 93,338.08
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Solution
The fourth proportional to 128,176.72, 192,265.08 and 93,338.08 is: 140,007.12
Step by Step Solution
- Step 1: Write the proportion equation
128,176.72 : 192,265.08 = 93,338.08 : x - Step 2: Convert to fraction form
128,176.72/192,265.08 = 93,338.08/x - Step 3: Cross multiply
128,176.72x = 192,265.08 × 93,338.08 - Step 4: Simplify right side
128,176.72x = 17,945,653,418.25 - Step 5: Solve for x
x = 17,945,653,418.25/128,176.72 - Step 6: Final answer
x = 140,007.12
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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.