Finding the Fourth Proportional to 134,831.80, 202,247.70 and 126,521.20
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Solution
The fourth proportional to 134,831.80, 202,247.70 and 126,521.20 is: 189,781.80
Step by Step Solution
- Step 1: Write the proportion equation
134,831.80 : 202,247.70 = 126,521.20 : x - Step 2: Convert to fraction form
134,831.80/202,247.70 = 126,521.20/x - Step 3: Cross multiply
134,831.80x = 202,247.70 × 126,521.20 - Step 4: Simplify right side
134,831.80x = 25,588,621,701.24 - Step 5: Solve for x
x = 25,588,621,701.24/134,831.80 - Step 6: Final answer
x = 189,781.80
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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.