Finding the Fourth Proportional to 147,572.96, 203,649.72 and 83,910.75
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Solution
The fourth proportional to 147,572.96, 203,649.72 and 83,910.75 is: 115,796.29
Step by Step Solution
- Step 1: Write the proportion equation
147,572.96 : 203,649.72 = 83,910.75 : x - Step 2: Convert to fraction form
147,572.96/203,649.72 = 83,910.75/x - Step 3: Cross multiply
147,572.96x = 203,649.72 × 83,910.75 - Step 4: Simplify right side
147,572.96x = 17,088,400,742.49 - Step 5: Solve for x
x = 17,088,400,742.49/147,572.96 - Step 6: Final answer
x = 115,796.29
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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.