Finding the Fourth Proportional to 115,474.81, 159,320.43 and 67,067.41
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Solution
The fourth proportional to 115,474.81, 159,320.43 and 67,067.41 is: 92,532.81
Step by Step Solution
- Step 1: Write the proportion equation
115,474.81 : 159,320.43 = 67,067.41 : x - Step 2: Convert to fraction form
115,474.81/159,320.43 = 67,067.41/x - Step 3: Cross multiply
115,474.81x = 159,320.43 × 67,067.41 - Step 4: Simplify right side
115,474.81x = 10,685,208,600.19 - Step 5: Solve for x
x = 10,685,208,600.19/115,474.81 - Step 6: Final answer
x = 92,532.81
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1.5x scale
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.