Finding the Fourth Proportional to 99,629.26, 148,783.52 and 87,557.02
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Solution
The fourth proportional to 99,629.26, 148,783.52 and 87,557.02 is: 130,755.17
Step by Step Solution
- Step 1: Write the proportion equation
99,629.26 : 148,783.52 = 87,557.02 : x - Step 2: Convert to fraction form
99,629.26/148,783.52 = 87,557.02/x - Step 3: Cross multiply
99,629.26x = 148,783.52 × 87,557.02 - Step 4: Simplify right side
99,629.26x = 13,027,040,990.74 - Step 5: Solve for x
x = 13,027,040,990.74/99,629.26 - Step 6: Final answer
x = 130,755.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.