Finding the Fourth Proportional to 131,619.70, 197,137.95 and 108,291.70
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Solution
The fourth proportional to 131,619.70, 197,137.95 and 108,291.70 is: 162,197.63
Step by Step Solution
- Step 1: Write the proportion equation
131,619.70 : 197,137.95 = 108,291.70 : x - Step 2: Convert to fraction form
131,619.70/197,137.95 = 108,291.70/x - Step 3: Cross multiply
131,619.70x = 197,137.95 × 108,291.70 - Step 4: Simplify right side
131,619.70x = 21,348,403,740.02 - Step 5: Solve for x
x = 21,348,403,740.02/131,619.70 - Step 6: Final answer
x = 162,197.63
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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.