Finding the Fourth Proportional to 166,361.19, 249,620.48 and 86,356.63
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Solution
The fourth proportional to 166,361.19, 249,620.48 and 86,356.63 is: 129,575.80
Step by Step Solution
- Step 1: Write the proportion equation
166,361.19 : 249,620.48 = 86,356.63 : x - Step 2: Convert to fraction form
166,361.19/249,620.48 = 86,356.63/x - Step 3: Cross multiply
166,361.19x = 249,620.48 × 86,356.63 - Step 4: Simplify right side
166,361.19x = 21,556,384,121.62 - Step 5: Solve for x
x = 21,556,384,121.62/166,361.19 - Step 6: Final answer
x = 129,575.80
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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.