Finding the Fourth Proportional to 121,663.24, 166,675.84 and 117,114.74
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Solution
The fourth proportional to 121,663.24, 166,675.84 and 117,114.74 is: 160,444.50
Step by Step Solution
- Step 1: Write the proportion equation
121,663.24 : 166,675.84 = 117,114.74 : x - Step 2: Convert to fraction form
121,663.24/166,675.84 = 117,114.74/x - Step 3: Cross multiply
121,663.24x = 166,675.84 × 117,114.74 - Step 4: Simplify right side
121,663.24x = 19,520,197,665.88 - Step 5: Solve for x
x = 19,520,197,665.88/121,663.24 - Step 6: Final answer
x = 160,444.50
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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.