Finding the Fourth Proportional to 117,357.99, 161,951.18 and 67,053.75
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Solution
The fourth proportional to 117,357.99, 161,951.18 and 67,053.75 is: 92,532.55
Step by Step Solution
- Step 1: Write the proportion equation
117,357.99 : 161,951.18 = 67,053.75 : x - Step 2: Convert to fraction form
117,357.99/161,951.18 = 67,053.75/x - Step 3: Cross multiply
117,357.99x = 161,951.18 × 67,053.75 - Step 4: Simplify right side
117,357.99x = 10,859,433,600.66 - Step 5: Solve for x
x = 10,859,433,600.66/117,357.99 - Step 6: Final answer
x = 92,532.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.