Finding the Fourth Proportional to 128,225.54, 192,360.18 and 39,462.50
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Solution
The fourth proportional to 128,225.54, 192,360.18 and 39,462.50 is: 59,200.48
Step by Step Solution
- Step 1: Write the proportion equation
128,225.54 : 192,360.18 = 39,462.50 : x - Step 2: Convert to fraction form
128,225.54/192,360.18 = 39,462.50/x - Step 3: Cross multiply
128,225.54x = 192,360.18 × 39,462.50 - Step 4: Simplify right side
128,225.54x = 7,591,013,603.25 - Step 5: Solve for x
x = 7,591,013,603.25/128,225.54 - Step 6: Final answer
x = 59,200.48
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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.