Finding the Fourth Proportional to 134,900.46, 186,161.60 and 74,471.18
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Solution
The fourth proportional to 134,900.46, 186,161.60 and 74,471.18 is: 102,769.65
Step by Step Solution
- Step 1: Write the proportion equation
134,900.46 : 186,161.60 = 74,471.18 : x - Step 2: Convert to fraction form
134,900.46/186,161.60 = 74,471.18/x - Step 3: Cross multiply
134,900.46x = 186,161.60 × 74,471.18 - Step 4: Simplify right side
134,900.46x = 13,863,673,278.06 - Step 5: Solve for x
x = 13,863,673,278.06/134,900.46 - Step 6: Final answer
x = 102,769.65
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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.