Finding the Fourth Proportional to 129,701.49, 193,262.91 and 115,552.82
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Solution
The fourth proportional to 129,701.49, 193,262.91 and 115,552.82 is: 172,180.55
Step by Step Solution
- Step 1: Write the proportion equation
129,701.49 : 193,262.91 = 115,552.82 : x - Step 2: Convert to fraction form
129,701.49/193,262.91 = 115,552.82/x - Step 3: Cross multiply
129,701.49x = 193,262.91 × 115,552.82 - Step 4: Simplify right side
129,701.49x = 22,332,073,285.59 - Step 5: Solve for x
x = 22,332,073,285.59/129,701.49 - Step 6: Final answer
x = 172,180.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.