Finding the Fourth Proportional to 135,044.26, 186,369.86 and 74,614.92
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Solution
The fourth proportional to 135,044.26, 186,369.86 and 74,614.92 is: 102,973.44
Step by Step Solution
- Step 1: Write the proportion equation
135,044.26 : 186,369.86 = 74,614.92 : x - Step 2: Convert to fraction form
135,044.26/186,369.86 = 74,614.92/x - Step 3: Cross multiply
135,044.26x = 186,369.86 × 74,614.92 - Step 4: Simplify right side
135,044.26x = 13,905,972,730.29 - Step 5: Solve for x
x = 13,905,972,730.29/135,044.26 - Step 6: Final answer
x = 102,973.44
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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.