Finding the Fourth Proportional to 117,920.28, 162,831.12 and 114,107.31
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Solution
The fourth proportional to 117,920.28, 162,831.12 and 114,107.31 is: 157,565.95
Step by Step Solution
- Step 1: Write the proportion equation
117,920.28 : 162,831.12 = 114,107.31 : x - Step 2: Convert to fraction form
117,920.28/162,831.12 = 114,107.31/x - Step 3: Cross multiply
117,920.28x = 162,831.12 × 114,107.31 - Step 4: Simplify right side
117,920.28x = 18,580,221,087.49 - Step 5: Solve for x
x = 18,580,221,087.49/117,920.28 - Step 6: Final answer
x = 157,565.95
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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.