Finding the Fourth Proportional to 138,619.80, 207,784.98 and 100,577.08
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Solution
The fourth proportional to 138,619.80, 207,784.98 and 100,577.08 is: 150,760.62
Step by Step Solution
- Step 1: Write the proportion equation
138,619.80 : 207,784.98 = 100,577.08 : x - Step 2: Convert to fraction form
138,619.80/207,784.98 = 100,577.08/x - Step 3: Cross multiply
138,619.80x = 207,784.98 × 100,577.08 - Step 4: Simplify right side
138,619.80x = 20,898,406,556.26 - Step 5: Solve for x
x = 20,898,406,556.26/138,619.80 - Step 6: Final answer
x = 150,760.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.