Finding the Fourth Proportional to 135,301.19, 186,712.84 and 74,871.79
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Solution
The fourth proportional to 135,301.19, 186,712.84 and 74,871.79 is: 103,321.52
Step by Step Solution
- Step 1: Write the proportion equation
135,301.19 : 186,712.84 = 74,871.79 : x - Step 2: Convert to fraction form
135,301.19/186,712.84 = 74,871.79/x - Step 3: Cross multiply
135,301.19x = 186,712.84 × 74,871.79 - Step 4: Simplify right side
135,301.19x = 13,979,524,173.59 - Step 5: Solve for x
x = 13,979,524,173.59/135,301.19 - Step 6: Final answer
x = 103,321.52
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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.