Finding the Fourth Proportional to 158,125.90, 218,212.95 and 86,504.62
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Solution
The fourth proportional to 158,125.90, 218,212.95 and 86,504.62 is: 119,375.94
Step by Step Solution
- Step 1: Write the proportion equation
158,125.90 : 218,212.95 = 86,504.62 : x - Step 2: Convert to fraction form
158,125.90/218,212.95 = 86,504.62/x - Step 3: Cross multiply
158,125.90x = 218,212.95 × 86,504.62 - Step 4: Simplify right side
158,125.90x = 18,876,428,318.83 - Step 5: Solve for x
x = 18,876,428,318.83/158,125.90 - Step 6: Final answer
x = 119,375.94
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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.