Finding the Fourth Proportional to 147,572.26, 203,648.77 and 83,910.05
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Solution
The fourth proportional to 147,572.26, 203,648.77 and 83,910.05 is: 115,795.33
Step by Step Solution
- Step 1: Write the proportion equation
147,572.26 : 203,648.77 = 83,910.05 : x - Step 2: Convert to fraction form
147,572.26/203,648.77 = 83,910.05/x - Step 3: Cross multiply
147,572.26x = 203,648.77 × 83,910.05 - Step 4: Simplify right side
147,572.26x = 17,088,178,473.14 - Step 5: Solve for x
x = 17,088,178,473.14/147,572.26 - Step 6: Final answer
x = 115,795.33
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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.