Finding the Fourth Proportional to 115,831.20, 173,859.15 and 55,901.87
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Solution
The fourth proportional to 115,831.20, 173,859.15 and 55,901.87 is: 83,907.02
Step by Step Solution
- Step 1: Write the proportion equation
115,831.20 : 173,859.15 = 55,901.87 : x - Step 2: Convert to fraction form
115,831.20/173,859.15 = 55,901.87/x - Step 3: Cross multiply
115,831.20x = 173,859.15 × 55,901.87 - Step 4: Simplify right side
115,831.20x = 9,719,050,732.31 - Step 5: Solve for x
x = 9,719,050,732.31/115,831.20 - Step 6: Final answer
x = 83,907.02
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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.