Finding the Fourth Proportional to 168,755.41, 253,133.36 and 68,915.60
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Solution
The fourth proportional to 168,755.41, 253,133.36 and 68,915.60 is: 103,373.50
Step by Step Solution
- Step 1: Write the proportion equation
168,755.41 : 253,133.36 = 68,915.60 : x - Step 2: Convert to fraction form
168,755.41/253,133.36 = 68,915.60/x - Step 3: Cross multiply
168,755.41x = 253,133.36 × 68,915.60 - Step 4: Simplify right side
168,755.41x = 17,444,838,146.67 - Step 5: Solve for x
x = 17,444,838,146.67/168,755.41 - Step 6: Final answer
x = 103,373.50
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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.