Finding the Fourth Proportional to 121,012.97, 166,992.62 and 67,302.99
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Solution
The fourth proportional to 121,012.97, 166,992.62 and 67,302.99 is: 92,875.19
Step by Step Solution
- Step 1: Write the proportion equation
121,012.97 : 166,992.62 = 67,302.99 : x - Step 2: Convert to fraction form
121,012.97/166,992.62 = 67,302.99/x - Step 3: Cross multiply
121,012.97x = 166,992.62 × 67,302.99 - Step 4: Simplify right side
121,012.97x = 11,239,102,297.42 - Step 5: Solve for x
x = 11,239,102,297.42/121,012.97 - Step 6: Final answer
x = 92,875.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.