Finding the Fourth Proportional to 145,945.26, 201,404.34 and 78,877.26
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Solution
The fourth proportional to 145,945.26, 201,404.34 and 78,877.26 is: 108,850.55
Step by Step Solution
- Step 1: Write the proportion equation
145,945.26 : 201,404.34 = 78,877.26 : x - Step 2: Convert to fraction form
145,945.26/201,404.34 = 78,877.26/x - Step 3: Cross multiply
145,945.26x = 201,404.34 × 78,877.26 - Step 4: Simplify right side
145,945.26x = 15,886,222,491.31 - Step 5: Solve for x
x = 15,886,222,491.31/145,945.26 - Step 6: Final answer
x = 108,850.55
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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.