Finding the Fourth Proportional to 128,167.76, 192,251.60 and 93,329.12
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Solution
The fourth proportional to 128,167.76, 192,251.60 and 93,329.12 is: 139,993.65
Step by Step Solution
- Step 1: Write the proportion equation
128,167.76 : 192,251.60 = 93,329.12 : x - Step 2: Convert to fraction form
128,167.76/192,251.60 = 93,329.12/x - Step 3: Cross multiply
128,167.76x = 192,251.60 × 93,329.12 - Step 4: Simplify right side
128,167.76x = 17,942,672,646.59 - Step 5: Solve for x
x = 17,942,672,646.59/128,167.76 - Step 6: Final answer
x = 139,993.65
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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.