Finding the Fourth Proportional to 121,524.08, 167,678.19 and 69,831.19
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Solution
The fourth proportional to 121,524.08, 167,678.19 and 69,831.19 is: 96,352.65
Step by Step Solution
- Step 1: Write the proportion equation
121,524.08 : 167,678.19 = 69,831.19 : x - Step 2: Convert to fraction form
121,524.08/167,678.19 = 69,831.19/x - Step 3: Cross multiply
121,524.08x = 167,678.19 × 69,831.19 - Step 4: Simplify right side
121,524.08x = 11,709,167,963.94 - Step 5: Solve for x
x = 11,709,167,963.94/121,524.08 - Step 6: Final answer
x = 96,352.65
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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.