Finding the Fourth Proportional to 128,711.08, 193,075.26 and 35,217.64
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Solution
The fourth proportional to 128,711.08, 193,075.26 and 35,217.64 is: 52,828.82
Step by Step Solution
- Step 1: Write the proportion equation
128,711.08 : 193,075.26 = 35,217.64 : x - Step 2: Convert to fraction form
128,711.08/193,075.26 = 35,217.64/x - Step 3: Cross multiply
128,711.08x = 193,075.26 × 35,217.64 - Step 4: Simplify right side
128,711.08x = 6,799,654,999.59 - Step 5: Solve for x
x = 6,799,654,999.59/128,711.08 - Step 6: Final answer
x = 52,828.82
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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.