Finding the Fourth Proportional to 135,555.91, 202,121.95 and 131,831.62
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Solution
The fourth proportional to 135,555.91, 202,121.95 and 131,831.62 is: 196,568.81
Step by Step Solution
- Step 1: Write the proportion equation
135,555.91 : 202,121.95 = 131,831.62 : x - Step 2: Convert to fraction form
135,555.91/202,121.95 = 131,831.62/x - Step 3: Cross multiply
135,555.91x = 202,121.95 × 131,831.62 - Step 4: Simplify right side
135,555.91x = 26,646,063,518.36 - Step 5: Solve for x
x = 26,646,063,518.36/135,555.91 - Step 6: Final answer
x = 196,568.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.