Finding the Fourth Proportional to 135,018.12, 186,324.12 and 74,592.66
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Solution
The fourth proportional to 135,018.12, 186,324.12 and 74,592.66 is: 102,937.38
Step by Step Solution
- Step 1: Write the proportion equation
135,018.12 : 186,324.12 = 74,592.66 : x - Step 2: Convert to fraction form
135,018.12/186,324.12 = 74,592.66/x - Step 3: Cross multiply
135,018.12x = 186,324.12 × 74,592.66 - Step 4: Simplify right side
135,018.12x = 13,898,411,732.96 - Step 5: Solve for x
x = 13,898,411,732.96/135,018.12 - Step 6: Final answer
x = 102,937.38
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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.