Finding the Fourth Proportional to 134,871.70, 186,109.68 and 74,438.46
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Solution
The fourth proportional to 134,871.70, 186,109.68 and 74,438.46 is: 102,717.75
Step by Step Solution
- Step 1: Write the proportion equation
134,871.70 : 186,109.68 = 74,438.46 : x - Step 2: Convert to fraction form
134,871.70/186,109.68 = 74,438.46/x - Step 3: Cross multiply
134,871.70x = 186,109.68 × 74,438.46 - Step 4: Simplify right side
134,871.70x = 13,853,717,970.29 - Step 5: Solve for x
x = 13,853,717,970.29/134,871.70 - Step 6: Final answer
x = 102,717.75
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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.