Finding the Fourth Proportional to 170,618.87, 235,455.05 and 94,136.78
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Solution
The fourth proportional to 170,618.87, 235,455.05 and 94,136.78 is: 129,909.32
Step by Step Solution
- Step 1: Write the proportion equation
170,618.87 : 235,455.05 = 94,136.78 : x - Step 2: Convert to fraction form
170,618.87/235,455.05 = 94,136.78/x - Step 3: Cross multiply
170,618.87x = 235,455.05 × 94,136.78 - Step 4: Simplify right side
170,618.87x = 22,164,981,065.72 - Step 5: Solve for x
x = 22,164,981,065.72/170,618.87 - Step 6: Final answer
x = 129,909.32
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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.