Finding the Fourth Proportional to 113,213.40, 169,625.70 and 73,750.20
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Solution
The fourth proportional to 113,213.40, 169,625.70 and 73,750.20 is: 110,498.66
Step by Step Solution
- Step 1: Write the proportion equation
113,213.40 : 169,625.70 = 73,750.20 : x - Step 2: Convert to fraction form
113,213.40/169,625.70 = 73,750.20/x - Step 3: Cross multiply
113,213.40x = 169,625.70 × 73,750.20 - Step 4: Simplify right side
113,213.40x = 12,509,929,300.14 - Step 5: Solve for x
x = 12,509,929,300.14/113,213.40 - Step 6: Final answer
x = 110,498.66
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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.