Finding the Fourth Proportional to 187,834.61, 259,245.05 and 142,436.05
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Solution
The fourth proportional to 187,834.61, 259,245.05 and 142,436.05 is: 196,586.99
Step by Step Solution
- Step 1: Write the proportion equation
187,834.61 : 259,245.05 = 142,436.05 : x - Step 2: Convert to fraction form
187,834.61/259,245.05 = 142,436.05/x - Step 3: Cross multiply
187,834.61x = 259,245.05 × 142,436.05 - Step 4: Simplify right side
187,834.61x = 36,925,840,904.05 - Step 5: Solve for x
x = 36,925,840,904.05/187,834.61 - Step 6: Final answer
x = 196,586.99
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1.5x scale
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.