Finding the Fourth Proportional to 136,661.22, 188,591.18 and 75,407.99
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Solution
The fourth proportional to 136,661.22, 188,591.18 and 75,407.99 is: 104,062.30
Step by Step Solution
- Step 1: Write the proportion equation
136,661.22 : 188,591.18 = 75,407.99 : x - Step 2: Convert to fraction form
136,661.22/188,591.18 = 75,407.99/x - Step 3: Cross multiply
136,661.22x = 188,591.18 × 75,407.99 - Step 4: Simplify right side
136,661.22x = 14,221,280,495.53 - Step 5: Solve for x
x = 14,221,280,495.53/136,661.22 - Step 6: Final answer
x = 104,062.30
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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.