Finding the Fourth Proportional to 136,117.80, 190,761.75 and 136,117.80
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Solution
The fourth proportional to 136,117.80, 190,761.75 and 136,117.80 is: 190,761.75
Step by Step Solution
- Step 1: Write the proportion equation
136,117.80 : 190,761.75 = 136,117.80 : x - Step 2: Convert to fraction form
136,117.80/190,761.75 = 136,117.80/x - Step 3: Cross multiply
136,117.80x = 190,761.75 × 136,117.80 - Step 4: Simplify right side
136,117.80x = 25,966,069,734.15 - Step 5: Solve for x
x = 25,966,069,734.15/136,117.80 - Step 6: Final answer
x = 190,761.75
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.