Finding the Fourth Proportional to 134,861.29, 186,107.66 and 74,431.93
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Solution
The fourth proportional to 134,861.29, 186,107.66 and 74,431.93 is: 102,715.55
Step by Step Solution
- Step 1: Write the proportion equation
134,861.29 : 186,107.66 = 74,431.93 : x - Step 2: Convert to fraction form
134,861.29/186,107.66 = 74,431.93/x - Step 3: Cross multiply
134,861.29x = 186,107.66 × 74,431.93 - Step 4: Simplify right side
134,861.29x = 13,852,351,484.16 - Step 5: Solve for x
x = 13,852,351,484.16/134,861.29 - Step 6: Final answer
x = 102,715.55
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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.