Finding the Fourth Proportional to 142,838.18, 214,246.39 and 54,083.62
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Solution
The fourth proportional to 142,838.18, 214,246.39 and 54,083.62 is: 81,121.31
Step by Step Solution
- Step 1: Write the proportion equation
142,838.18 : 214,246.39 = 54,083.62 : x - Step 2: Convert to fraction form
142,838.18/214,246.39 = 54,083.62/x - Step 3: Cross multiply
142,838.18x = 214,246.39 × 54,083.62 - Step 4: Simplify right side
142,838.18x = 11,587,220,343.13 - Step 5: Solve for x
x = 11,587,220,343.13/142,838.18 - Step 6: Final answer
x = 81,121.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.