Finding the Fourth Proportional to 186,173.19, 256,920.12 and 101,290.86
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Solution
The fourth proportional to 186,173.19, 256,920.12 and 101,290.86 is: 139,781.99
Step by Step Solution
- Step 1: Write the proportion equation
186,173.19 : 256,920.12 = 101,290.86 : x - Step 2: Convert to fraction form
186,173.19/256,920.12 = 101,290.86/x - Step 3: Cross multiply
186,173.19x = 256,920.12 × 101,290.86 - Step 4: Simplify right side
186,173.19x = 26,023,659,906.10 - Step 5: Solve for x
x = 26,023,659,906.10/186,173.19 - Step 6: Final answer
x = 139,781.99
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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.