Finding the Fourth Proportional to 169,943.80, 254,915.70 and 91,211.80
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Solution
The fourth proportional to 169,943.80, 254,915.70 and 91,211.80 is: 136,817.70
Step by Step Solution
- Step 1: Write the proportion equation
169,943.80 : 254,915.70 = 91,211.80 : x - Step 2: Convert to fraction form
169,943.80/254,915.70 = 91,211.80/x - Step 3: Cross multiply
169,943.80x = 254,915.70 × 91,211.80 - Step 4: Simplify right side
169,943.80x = 23,251,319,845.26 - Step 5: Solve for x
x = 23,251,319,845.26/169,943.80 - Step 6: Final answer
x = 136,817.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.