Finding the Fourth Proportional to 134,903.19, 186,161.51 and 74,472.53
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Solution
The fourth proportional to 134,903.19, 186,161.51 and 74,472.53 is: 102,769.40
Step by Step Solution
- Step 1: Write the proportion equation
134,903.19 : 186,161.51 = 74,472.53 : x - Step 2: Convert to fraction form
134,903.19/186,161.51 = 74,472.53/x - Step 3: Cross multiply
134,903.19x = 186,161.51 × 74,472.53 - Step 4: Simplify right side
134,903.19x = 13,863,919,289.91 - Step 5: Solve for x
x = 13,863,919,289.91/134,903.19 - Step 6: Final answer
x = 102,769.40
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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.