Finding the Fourth Proportional to 126,306.59, 189,460.11 and 84,268.80
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Solution
The fourth proportional to 126,306.59, 189,460.11 and 84,268.80 is: 126,403.35
Step by Step Solution
- Step 1: Write the proportion equation
126,306.59 : 189,460.11 = 84,268.80 : x - Step 2: Convert to fraction form
126,306.59/189,460.11 = 84,268.80/x - Step 3: Cross multiply
126,306.59x = 189,460.11 × 84,268.80 - Step 4: Simplify right side
126,306.59x = 15,965,575,696.22 - Step 5: Solve for x
x = 15,965,575,696.22/126,306.59 - Step 6: Final answer
x = 126,403.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.