Finding the Fourth Proportional to 134,861.74, 186,106.94 and 74,432.29
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Solution
The fourth proportional to 134,861.74, 186,106.94 and 74,432.29 is: 102,715.31
Step by Step Solution
- Step 1: Write the proportion equation
134,861.74 : 186,106.94 = 74,432.29 : x - Step 2: Convert to fraction form
134,861.74/186,106.94 = 74,432.29/x - Step 3: Cross multiply
134,861.74x = 186,106.94 × 74,432.29 - Step 4: Simplify right side
134,861.74x = 13,852,365,729.09 - Step 5: Solve for x
x = 13,852,365,729.09/134,861.74 - Step 6: Final answer
x = 102,715.31
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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.