Finding the Fourth Proportional to 121,669.24, 166,684.06 and 117,120.74
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Solution
The fourth proportional to 121,669.24, 166,684.06 and 117,120.74 is: 160,452.72
Step by Step Solution
- Step 1: Write the proportion equation
121,669.24 : 166,684.06 = 117,120.74 : x - Step 2: Convert to fraction form
121,669.24/166,684.06 = 117,120.74/x - Step 3: Cross multiply
121,669.24x = 166,684.06 × 117,120.74 - Step 4: Simplify right side
121,669.24x = 19,522,160,453.40 - Step 5: Solve for x
x = 19,522,160,453.40/121,669.24 - Step 6: Final answer
x = 160,452.72
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.