Finding the Fourth Proportional to 126,654.29, 174,740.70 and 74,974.13
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Solution
The fourth proportional to 126,654.29, 174,740.70 and 74,974.13 is: 103,439.31
Step by Step Solution
- Step 1: Write the proportion equation
126,654.29 : 174,740.70 = 74,974.13 : x - Step 2: Convert to fraction form
126,654.29/174,740.70 = 74,974.13/x - Step 3: Cross multiply
126,654.29x = 174,740.70 × 74,974.13 - Step 4: Simplify right side
126,654.29x = 13,101,031,958.09 - Step 5: Solve for x
x = 13,101,031,958.09/126,654.29 - Step 6: Final answer
x = 103,439.31
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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.