Finding the Fourth Proportional to 121,701.80, 182,465.16 and 55,107.65
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Solution
The fourth proportional to 121,701.80, 182,465.16 and 55,107.65 is: 82,621.84
Step by Step Solution
- Step 1: Write the proportion equation
121,701.80 : 182,465.16 = 55,107.65 : x - Step 2: Convert to fraction form
121,701.80/182,465.16 = 55,107.65/x - Step 3: Cross multiply
121,701.80x = 182,465.16 × 55,107.65 - Step 4: Simplify right side
121,701.80x = 10,055,226,174.47 - Step 5: Solve for x
x = 10,055,226,174.47/121,701.80 - Step 6: Final answer
x = 82,621.84
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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.