Finding the Fourth Proportional to 159,441.63, 220,021.14 and 99,010.98
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Solution
The fourth proportional to 159,441.63, 220,021.14 and 99,010.98 is: 136,629.99
Step by Step Solution
- Step 1: Write the proportion equation
159,441.63 : 220,021.14 = 99,010.98 : x - Step 2: Convert to fraction form
159,441.63/220,021.14 = 99,010.98/x - Step 3: Cross multiply
159,441.63x = 220,021.14 × 99,010.98 - Step 4: Simplify right side
159,441.63x = 21,784,508,692.12 - Step 5: Solve for x
x = 21,784,508,692.12/159,441.63 - Step 6: Final answer
x = 136,629.99
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1.5x scale
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.