Finding the Fourth Proportional to 100,539.63, 138,651.99 and 68,322.33
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Solution
The fourth proportional to 100,539.63, 138,651.99 and 68,322.33 is: 94,221.82
Step by Step Solution
- Step 1: Write the proportion equation
100,539.63 : 138,651.99 = 68,322.33 : x - Step 2: Convert to fraction form
100,539.63/138,651.99 = 68,322.33/x - Step 3: Cross multiply
100,539.63x = 138,651.99 × 68,322.33 - Step 4: Simplify right side
100,539.63x = 9,473,027,015.94 - Step 5: Solve for x
x = 9,473,027,015.94/100,539.63 - Step 6: Final answer
x = 94,221.82
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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.