Finding the Fourth Proportional to 134,932.16, 186,213.68 and 74,502.62
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Solution
The fourth proportional to 134,932.16, 186,213.68 and 74,502.62 is: 102,817.65
Step by Step Solution
- Step 1: Write the proportion equation
134,932.16 : 186,213.68 = 74,502.62 : x - Step 2: Convert to fraction form
134,932.16/186,213.68 = 74,502.62/x - Step 3: Cross multiply
134,932.16x = 186,213.68 × 74,502.62 - Step 4: Simplify right side
134,932.16x = 13,873,407,039.84 - Step 5: Solve for x
x = 13,873,407,039.84/134,932.16 - Step 6: Final answer
x = 102,817.65
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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.