Finding the Fourth Proportional to 146,831.76, 202,659.36 and 89,489.76
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Solution
The fourth proportional to 146,831.76, 202,659.36 and 89,489.76 is: 123,515.09
Step by Step Solution
- Step 1: Write the proportion equation
146,831.76 : 202,659.36 = 89,489.76 : x - Step 2: Convert to fraction form
146,831.76/202,659.36 = 89,489.76/x - Step 3: Cross multiply
146,831.76x = 202,659.36 × 89,489.76 - Step 4: Simplify right side
146,831.76x = 18,135,937,488.15 - Step 5: Solve for x
x = 18,135,937,488.15/146,831.76 - Step 6: Final answer
x = 123,515.09
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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.