Finding the Fourth Proportional to 146,013.08, 201,498.34 and 78,945.08
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Solution
The fourth proportional to 146,013.08, 201,498.34 and 78,945.08 is: 108,944.37
Step by Step Solution
- Step 1: Write the proportion equation
146,013.08 : 201,498.34 = 78,945.08 : x - Step 2: Convert to fraction form
146,013.08/201,498.34 = 78,945.08/x - Step 3: Cross multiply
146,013.08x = 201,498.34 × 78,945.08 - Step 4: Simplify right side
146,013.08x = 15,907,302,571.17 - Step 5: Solve for x
x = 15,907,302,571.17/146,013.08 - Step 6: Final answer
x = 108,944.37
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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.