Finding the Fourth Proportional to 100,618.79, 138,847.22 and 55,295.79
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Solution
The fourth proportional to 100,618.79, 138,847.22 and 55,295.79 is: 76,304.50
Step by Step Solution
- Step 1: Write the proportion equation
100,618.79 : 138,847.22 = 55,295.79 : x - Step 2: Convert to fraction form
100,618.79/138,847.22 = 55,295.79/x - Step 3: Cross multiply
100,618.79x = 138,847.22 × 55,295.79 - Step 4: Simplify right side
100,618.79x = 7,677,666,442.72 - Step 5: Solve for x
x = 7,677,666,442.72/100,618.79 - Step 6: Final answer
x = 76,304.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.