Finding the Fourth Proportional to 134,878.52, 186,132.38 and 74,449.19
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Solution
The fourth proportional to 134,878.52, 186,132.38 and 74,449.19 is: 102,739.90
Step by Step Solution
- Step 1: Write the proportion equation
134,878.52 : 186,132.38 = 74,449.19 : x - Step 2: Convert to fraction form
134,878.52/186,132.38 = 74,449.19/x - Step 3: Cross multiply
134,878.52x = 186,132.38 × 74,449.19 - Step 4: Simplify right side
134,878.52x = 13,857,405,575.23 - Step 5: Solve for x
x = 13,857,405,575.23/134,878.52 - Step 6: Final answer
x = 102,739.90
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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.