Finding the Fourth Proportional to 122,831.96, 169,508.84 and 69,117.88
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Solution
The fourth proportional to 122,831.96, 169,508.84 and 69,117.88 is: 95,383.09
Step by Step Solution
- Step 1: Write the proportion equation
122,831.96 : 169,508.84 = 69,117.88 : x - Step 2: Convert to fraction form
122,831.96/169,508.84 = 69,117.88/x - Step 3: Cross multiply
122,831.96x = 169,508.84 × 69,117.88 - Step 4: Simplify right side
122,831.96x = 11,716,091,662.06 - Step 5: Solve for x
x = 11,716,091,662.06/122,831.96 - Step 6: Final answer
x = 95,383.09
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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.