Finding the Fourth Proportional to 105,635.88, 158,347.14 and 66,220.62
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Solution
The fourth proportional to 105,635.88, 158,347.14 and 66,220.62 is: 99,264.05
Step by Step Solution
- Step 1: Write the proportion equation
105,635.88 : 158,347.14 = 66,220.62 : x - Step 2: Convert to fraction form
105,635.88/158,347.14 = 66,220.62/x - Step 3: Cross multiply
105,635.88x = 158,347.14 × 66,220.62 - Step 4: Simplify right side
105,635.88x = 10,485,845,786.03 - Step 5: Solve for x
x = 10,485,845,786.03/105,635.88 - Step 6: Final answer
x = 99,264.05
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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.