Finding the Fourth Proportional to 105,901.19, 158,851.84 and 66,485.98
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Solution
The fourth proportional to 105,901.19, 158,851.84 and 66,485.98 is: 99,729.00
Step by Step Solution
- Step 1: Write the proportion equation
105,901.19 : 158,851.84 = 66,485.98 : x - Step 2: Convert to fraction form
105,901.19/158,851.84 = 66,485.98/x - Step 3: Cross multiply
105,901.19x = 158,851.84 × 66,485.98 - Step 4: Simplify right side
105,901.19x = 10,561,419,130.51 - Step 5: Solve for x
x = 10,561,419,130.51/105,901.19 - Step 6: Final answer
x = 99,729.00
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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.