Finding the Fourth Proportional to 128,822.40, 193,186.08 and 44,560.80
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Solution
The fourth proportional to 128,822.40, 193,186.08 and 44,560.80 is: 66,824.76
Step by Step Solution
- Step 1: Write the proportion equation
128,822.40 : 193,186.08 = 44,560.80 : x - Step 2: Convert to fraction form
128,822.40/193,186.08 = 44,560.80/x - Step 3: Cross multiply
128,822.40x = 193,186.08 × 44,560.80 - Step 4: Simplify right side
128,822.40x = 8,608,526,273.66 - Step 5: Solve for x
x = 8,608,526,273.66/128,822.40 - Step 6: Final answer
x = 66,824.76
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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.