Finding the Fourth Proportional to 121,598.28, 167,833.62 and 71,313.48
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Solution
The fourth proportional to 121,598.28, 167,833.62 and 71,313.48 is: 98,429.02
Step by Step Solution
- Step 1: Write the proportion equation
121,598.28 : 167,833.62 = 71,313.48 : x - Step 2: Convert to fraction form
121,598.28/167,833.62 = 71,313.48/x - Step 3: Cross multiply
121,598.28x = 167,833.62 × 71,313.48 - Step 4: Simplify right side
121,598.28x = 11,968,799,503.20 - Step 5: Solve for x
x = 11,968,799,503.20/121,598.28 - Step 6: Final answer
x = 98,429.02
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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.