Finding the Fourth Proportional to 139,234.14, 192,242.97 and 85,591.08
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Solution
The fourth proportional to 139,234.14, 192,242.97 and 85,591.08 is: 118,177.08
Step by Step Solution
- Step 1: Write the proportion equation
139,234.14 : 192,242.97 = 85,591.08 : x - Step 2: Convert to fraction form
139,234.14/192,242.97 = 85,591.08/x - Step 3: Cross multiply
139,234.14x = 192,242.97 × 85,591.08 - Step 4: Simplify right side
139,234.14x = 16,454,283,424.71 - Step 5: Solve for x
x = 16,454,283,424.71/139,234.14 - Step 6: Final answer
x = 118,177.08
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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.