Finding the Fourth Proportional to 121,577.06, 167,795.80 and 71,276.06
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Solution
The fourth proportional to 121,577.06, 167,795.80 and 71,276.06 is: 98,372.37
Step by Step Solution
- Step 1: Write the proportion equation
121,577.06 : 167,795.80 = 71,276.06 : x - Step 2: Convert to fraction form
121,577.06/167,795.80 = 71,276.06/x - Step 3: Cross multiply
121,577.06x = 167,795.80 × 71,276.06 - Step 4: Simplify right side
121,577.06x = 11,959,823,749.85 - Step 5: Solve for x
x = 11,959,823,749.85/121,577.06 - Step 6: Final answer
x = 98,372.37
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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.