Finding the Fourth Proportional to 105,935.22, 158,902.56 and 66,519.99
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Solution
The fourth proportional to 105,935.22, 158,902.56 and 66,519.99 is: 99,779.82
Step by Step Solution
- Step 1: Write the proportion equation
105,935.22 : 158,902.56 = 66,519.99 : x - Step 2: Convert to fraction form
105,935.22/158,902.56 = 66,519.99/x - Step 3: Cross multiply
105,935.22x = 158,902.56 × 66,519.99 - Step 4: Simplify right side
105,935.22x = 10,570,196,702.17 - Step 5: Solve for x
x = 10,570,196,702.17/105,935.22 - Step 6: Final answer
x = 99,779.82
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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.