Finding the Fourth Proportional to 113,850.38, 157,122.51 and 66,118.70
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Solution
The fourth proportional to 113,850.38, 157,122.51 and 66,118.70 is: 91,249.02
Step by Step Solution
- Step 1: Write the proportion equation
113,850.38 : 157,122.51 = 66,118.70 : x - Step 2: Convert to fraction form
113,850.38/157,122.51 = 66,118.70/x - Step 3: Cross multiply
113,850.38x = 157,122.51 × 66,118.70 - Step 4: Simplify right side
113,850.38x = 10,388,736,101.94 - Step 5: Solve for x
x = 10,388,736,101.94/113,850.38 - Step 6: Final answer
x = 91,249.02
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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.