Finding the Fourth Proportional to 134,831.40, 202,295.70 and 129,971.40
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Solution
The fourth proportional to 134,831.40, 202,295.70 and 129,971.40 is: 195,003.95
Step by Step Solution
- Step 1: Write the proportion equation
134,831.40 : 202,295.70 = 129,971.40 : x - Step 2: Convert to fraction form
134,831.40/202,295.70 = 129,971.40/x - Step 3: Cross multiply
134,831.40x = 202,295.70 × 129,971.40 - Step 4: Simplify right side
134,831.40x = 26,292,655,342.98 - Step 5: Solve for x
x = 26,292,655,342.98/134,831.40 - Step 6: Final answer
x = 195,003.95
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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.