Finding the Fourth Proportional to 148,759.08, 205,292.26 and 81,691.08
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Solution
The fourth proportional to 148,759.08, 205,292.26 and 81,691.08 is: 112,736.29
Step by Step Solution
- Step 1: Write the proportion equation
148,759.08 : 205,292.26 = 81,691.08 : x - Step 2: Convert to fraction form
148,759.08/205,292.26 = 81,691.08/x - Step 3: Cross multiply
148,759.08x = 205,292.26 × 81,691.08 - Step 4: Simplify right side
148,759.08x = 16,770,546,435.04 - Step 5: Solve for x
x = 16,770,546,435.04/148,759.08 - Step 6: Final answer
x = 112,736.29
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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.