Finding the Fourth Proportional to 128,232.40, 192,347.52 and 34,737.52
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Solution
The fourth proportional to 128,232.40, 192,347.52 and 34,737.52 is: 52,105.99
Step by Step Solution
- Step 1: Write the proportion equation
128,232.40 : 192,347.52 = 34,737.52 : x - Step 2: Convert to fraction form
128,232.40/192,347.52 = 34,737.52/x - Step 3: Cross multiply
128,232.40x = 192,347.52 × 34,737.52 - Step 4: Simplify right side
128,232.40x = 6,681,675,822.95 - Step 5: Solve for x
x = 6,681,675,822.95/128,232.40 - Step 6: Final answer
x = 52,105.99
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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.