Finding the Fourth Proportional to 166,857.44, 249,994.55 and 138,956.99
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Solution
The fourth proportional to 166,857.44, 249,994.55 and 138,956.99 is: 208,192.64
Step by Step Solution
- Step 1: Write the proportion equation
166,857.44 : 249,994.55 = 138,956.99 : x - Step 2: Convert to fraction form
166,857.44/249,994.55 = 138,956.99/x - Step 3: Cross multiply
166,857.44x = 249,994.55 × 138,956.99 - Step 4: Simplify right side
166,857.44x = 34,738,489,281.82 - Step 5: Solve for x
x = 34,738,489,281.82/166,857.44 - Step 6: Final answer
x = 208,192.64
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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.