Finding the Fourth Proportional to 134,791.80, 202,406.40 and 75,742.80
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Solution
The fourth proportional to 134,791.80, 202,406.40 and 75,742.80 is: 113,737.09
Step by Step Solution
- Step 1: Write the proportion equation
134,791.80 : 202,406.40 = 75,742.80 : x - Step 2: Convert to fraction form
134,791.80/202,406.40 = 75,742.80/x - Step 3: Cross multiply
134,791.80x = 202,406.40 × 75,742.80 - Step 4: Simplify right side
134,791.80x = 15,330,827,473.92 - Step 5: Solve for x
x = 15,330,827,473.92/134,791.80 - Step 6: Final answer
x = 113,737.09
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1.5x scale
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.