Finding the Fourth Proportional to 103,898.20, 155,883.48 and 32,831.68
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Solution
The fourth proportional to 103,898.20, 155,883.48 and 32,831.68 is: 49,258.95
Step by Step Solution
- Step 1: Write the proportion equation
103,898.20 : 155,883.48 = 32,831.68 : x - Step 2: Convert to fraction form
103,898.20/155,883.48 = 32,831.68/x - Step 3: Cross multiply
103,898.20x = 155,883.48 × 32,831.68 - Step 4: Simplify right side
103,898.20x = 5,117,916,532.65 - Step 5: Solve for x
x = 5,117,916,532.65/103,898.20 - Step 6: Final answer
x = 49,258.95
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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.