Finding the Fourth Proportional to 134,971.81, 186,262.49 and 74,543.96
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Solution
The fourth proportional to 134,971.81, 186,262.49 and 74,543.96 is: 102,871.43
Step by Step Solution
- Step 1: Write the proportion equation
134,971.81 : 186,262.49 = 74,543.96 : x - Step 2: Convert to fraction form
134,971.81/186,262.49 = 74,543.96/x - Step 3: Cross multiply
134,971.81x = 186,262.49 × 74,543.96 - Step 4: Simplify right side
134,971.81x = 13,884,743,604.06 - Step 5: Solve for x
x = 13,884,743,604.06/134,971.81 - Step 6: Final answer
x = 102,871.43
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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.