Finding the Fourth Proportional to 121,615.29, 167,816.37 and 70,618.08
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Solution
The fourth proportional to 121,615.29, 167,816.37 and 70,618.08 is: 97,445.56
Step by Step Solution
- Step 1: Write the proportion equation
121,615.29 : 167,816.37 = 70,618.08 : x - Step 2: Convert to fraction form
121,615.29/167,816.37 = 70,618.08/x - Step 3: Cross multiply
121,615.29x = 167,816.37 × 70,618.08 - Step 4: Simplify right side
121,615.29x = 11,850,869,841.97 - Step 5: Solve for x
x = 11,850,869,841.97/121,615.29 - Step 6: Final answer
x = 97,445.56
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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.