Finding the Fourth Proportional to 125,937.81, 188,906.49 and 86,374.98
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Solution
The fourth proportional to 125,937.81, 188,906.49 and 86,374.98 is: 129,562.32
Step by Step Solution
- Step 1: Write the proportion equation
125,937.81 : 188,906.49 = 86,374.98 : x - Step 2: Convert to fraction form
125,937.81/188,906.49 = 86,374.98/x - Step 3: Cross multiply
125,937.81x = 188,906.49 × 86,374.98 - Step 4: Simplify right side
125,937.81x = 16,316,794,295.62 - Step 5: Solve for x
x = 16,316,794,295.62/125,937.81 - Step 6: Final answer
x = 129,562.32
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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.