Finding the Fourth Proportional to 128,841.08, 193,204.97 and 52,887.47
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Solution
The fourth proportional to 128,841.08, 193,204.97 and 52,887.47 is: 79,307.95
Step by Step Solution
- Step 1: Write the proportion equation
128,841.08 : 193,204.97 = 52,887.47 : x - Step 2: Convert to fraction form
128,841.08/193,204.97 = 52,887.47/x - Step 3: Cross multiply
128,841.08x = 193,204.97 × 52,887.47 - Step 4: Simplify right side
128,841.08x = 10,218,121,790.29 - Step 5: Solve for x
x = 10,218,121,790.29/128,841.08 - Step 6: Final answer
x = 79,307.95
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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.