Finding the Fourth Proportional to 121,659.23, 166,670.36 and 117,110.74
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Solution
The fourth proportional to 121,659.23, 166,670.36 and 117,110.74 is: 160,439.03
Step by Step Solution
- Step 1: Write the proportion equation
121,659.23 : 166,670.36 = 117,110.74 : x - Step 2: Convert to fraction form
121,659.23/166,670.36 = 117,110.74/x - Step 3: Cross multiply
121,659.23x = 166,670.36 × 117,110.74 - Step 4: Simplify right side
121,659.23x = 19,518,889,195.67 - Step 5: Solve for x
x = 19,518,889,195.67/121,659.23 - Step 6: Final answer
x = 160,439.03
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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.